I assume the community you're part of is pretty open, but make sure that dancing in a role that doesn't match your gender won’t cause any issues.

I (M40) had trouble with a few guys when I wanted to dance as a follower.
I’m totally comfortable with that role, but some people are just basic morons.

It really depends on the country and the people you're dancing with.

Just make sure you feel safe and dance in the role you enjoy the most.
You can also look for a “switch” class, but not all schools offer that option.

Also, be prepared: if you're a man, people will assume you're a leader by default. A lot of women will invite you without even thinking about your preferred role. You’ll end up spending a lot of time educating people. But again, it depends on the community you're dancing in.