Hello from Halifax, NS, Canada!
I'd like to add to this convo by saying that for many years (as both a 
dancer and then a caller), I've had the desire to cultivate the roles as
 equal, rather than the Larks having more of a leader role.
I wasn't sure that that was an 
ok
 thing to want though, so I kept it to myself at first.   I'm thrilled 
to now read that there are others also consciously pushing the roles in 
that direction.
Our group was doing gents and ladies when i started to dance, and there 
were definitely many gents in our group who wanted to lead me around.  I
 didn't particularly enjoy being relegated to the follow role because of
 my gender.  (and yes, there was in theory the option to dance the other
 role, but as I was easily confused back then, I preferred to stick with
 the role I was slowly getting used to).  At the same time, as I started
 to learn more, I noticed there were many "gents" who had no sense of 
leading, and I began to enjoy as the "lady" being able to "back-lead" 
them to help them feel the wonderful centripetal and balancy forces at 
play.  I became quite the expert back-leader in the ladies chain!  But I
 always hated the term "back-lead" as I felt it had a negative 
connotation.  (That pushy lady is back-leading the gent, just like a 
back-seat driver!).  I even remember once, an experienced dancer from 
the US telling me it was totally inappropriate to desire to "back-lead" 
and I still feel annoyed by that today ;)
Anyhow, we've now switched over to a non-gendered dance with Larks and 
Ravens (with beautiful bird-labels that the dancers wear, which is why 
we haven't evolved to Robins here) and it is working wonderfully for us.
 
With so many new dancers coming in and old ones fading away over the 
years, I think the majority of our dancers  don't have any idea there 
even *were* gender roles in our type of dancing.  (We are quite an 
isolated community out here, so for many people, we are the only thing 
they know about contra dancing).  I think that is so cool!  When you 
look around the room at our dances, we have reached the point where 
there is no correlation between visible gender and bird-role - everyone 
randomly assigns themselves.  For us, it's been an amazing change - and 
we've heard directly from both the queer community and from many women 
that they feel more comfortable at our dances now.  And the cisgender 
men keep coming so I presume they are having an ok time too :)
As I've become more confident in my calling and am now the defacto 
caller for our group (nobody else is currently available though I'm 
going to train some new folks this spring), I've felt more bold to 
cultivate the roles as I'd like to see them.
I never mention a notion of leading or following, and instead I talk 
about the delightful "push-me-pull-you" feeling of contra, where each 
dancer feels an "elastic connection" to the other, and how (in my view) 
this special shared connection, along with a feeling of never-ending 
movement, is what makes contra magical.
We get a very large proportion of beginners each month, and also many 
repeat dancers who don't become particularly skilled (they perhaps 
attend once every 2-3 months on average, so their learning curve is 
slow, and they forget a lot after our 3-month summer break).
As such, we do a lot of dances without swings  (I try to get at least 
halfway through the dance without introducing a swing), and I'm trying 
Larks chains as well as Robins chains prior to swinging these days.  
Post-covid, we've been doing swings with a modified ballroom hold (Larks
 left hand in Robins' right, but other hands cupped on each others' 
elbows), which creates more space between the dancers -- both for 
personal comfort for any gender when dancing with a stranger--and also 
less germs-in-face feeling during these covid times.
(Though I plan to try the Scottish Swing that Ridge suggested at our 
next dance, just out of interest! :) )
I find the swing in this modified ballroom position feels symmetrical to
 me and to our dancers- both dancers are supporting each other by the 
elbow, and one does not feel more inherently "lead-y".
I've also replaced "California Twirl" with what I call "tug and turn" - I
 tell the dancers to tug off the hand they are holding (i.e inside hand)
 to pass by the right shoulder - then catch by the new inside hand 
facing the other way.  When this happens with partners, sometimes they 
end up doing a cali-twirl as an embellishment - but the base move is symmetrical.
So I feel I'm close to achieving my personal vision for a no 
leads/follow dance. :D
I have always loved contra as a way for two dancers or 4 dancers or a 
whole line of dancers to feel these interesting connections and forces 
at play, while never stopping moving.  I personally have never been 
interested in contra as something that resembles "couples dancing", so 
the approach we have in our group is emphasizing the elements of contra 
that 
I personally love 
best.    As our dances are well attended and growing, it seems to be 
working for our group. Which is gratifying for me for sure :)
All that said!
One of the most interesting parts of this discussion is to read about 
all the diverse approaches that callers are taking throughout the world,
 and how different approaches seem to work super well in different 
communities.  I am totally intrigued by positional calling.  I don't 
forsee trying it myself any time soon, only because what we have going 
for us right now is working really well and it's taken many years to get
 here... but I'm super keen to try it out at a dance elsewhere, and 
maybe in the future I'll give it a try in Halifax.
And while I LOVE our non-gendered dances here in Halifax, I could see 
myself as a cisgender person getting a kick out of going to a dance 
somewhere far away with my sweetheart on a date night, where they call 
with men and ladies and the gender roles are quite rigid, and getting 
into that vibe for the evening.  And though I am personally terrified of
 the idea of dancing at one of those fusion events where the contra 
dancers do some red-hot swing/blues type dancing with their partners, I 
*adore* watching videos of it, it's amazing!
So I wanted to say that I hope everyone continues to contribute to this 
discussion in the spirit of "Here is what works for me/ here is what 
works for my group in case it interests you" rather than in a critical 
or prosthelytizing fashion :)
Cheers from Halifax!
Kat Kitching
https://halifaxcontra.ca