Well, you would have no problem in my neck of the woods here in Hungary training with people...
... they will throw you up against any size. [In Thai Boxing, especially in the beginning, this can be devastating with potential mishaps...]
In grappling there is no problem with guys grappling with the gals here either.
The only difference that I notice with the women in Aikido here is that they [the men] do take an extra effort to go easy as not to cause an accident. [no 'accidental' over-applied nikkyos, etc.]
Despite the free-flow, I did once see something that stateside would cause some eyebrows to be raised - each place is different... as each milieu filters things through their own [cultural] ideas and experiences, so mileage may vary.