I just got my 3DS back from Nintendo's repair today! Our new life together can finally begin, with Pokemon Y! However, I've been playing my GBA avidly, and I can answer how I play that and will be playing my 3DS.
1. I publicly play my GBA and will play my 3DS mostly at work, after everyone else has left the office, and when my fiancee and I go out for dinner. Otherwise, I'm usually not in a position to play it when I'm not at home because I do most of the driving and I'm busy with errands or having fun, so I can't play it then.
2 & 3. Even though I did not answer yes, I want to address this anyway. I am 28 years old, but I have never felt the need to be ashamed of enjoying my favorite hobby. I WANT people to know what I'm about. When most people see me, they see an athletic black dude with cornrows and baggy jeans, and assume things. My handheld is one way of showing them there is more to me than a stereotype.









