Firstly, if there's some women, it's not all-male, but I think I know what you meant: a almost-wholly-male group. Of course, I can only infer by analogy from other situations where I've been in the minority in a way. I realise it's intimidating, but it's not really about whatever protected characteristic is disproportionate. It's more about how the environment is, how people behave and are allowed/encouraged to behave.
Conversely, are you aware of how intimidating a mixed or all-male environment can be for some men, particularly when trying to learn a traditionally "male" skill such as mechanics?
I don't think
@0-markymark-0's comments are helpful, ridiculing men who don't conform to stereotypes.