Sounds silly but not every place has a family area, and as a MTF with a nephew today was interesting.
This afternoon I was helping my sister look after her 4 year old, in the hospital (he fractured his wrist, earlier in the week and was complaing about it being sore). While we where waiting to be seen, she asked me to take him to the bathroom while she was busy with other work.
Freak out for me. For a childrens hospital the waiting area has no parents room. I've been using the correct bathrooms for months now, and besides the fact I was wearing a skirt today I doubt I could go into the guys if I tried.
I ended up pushing open the door for him and standing guard outside. Parents, grandparents, assorted relatives what do you do when you have to take little ones to the bathroom. I'm close to my sister and nephew and if this comes up again I would like to know what to do.