Transgender Support Group
This community is here to support and help the large population of transgender people. If you or anyone you know identify as transgender, this is the place to share your feelings and experiences and speak with others who are going through similar things in their lives.
If his physical appearance is that of a male, he can always use the stalls, that is what I do. Men do not do penis checks in the bathrooms, and lots of men use the stall to pee even sitting down, in all my 30 plus years using the stall in the men's room I have yet to have anyone harrass me about it.
The other thing he may want to work on is adaptability, instead of getting all frustrated and angry, he could be working on ways to make his life easier.
Just a thought,
Wolf (ftm since 1987)