I'm 47, and to add something extra to this conversation. If I were to find out some gal half my age was after me, it will probably make me feel really odd because I have a daughter exactly half my age. It's a whole dynamic set of thoughts that give a creepy kind of feeling "to me." I'm not saying that it isn't possible to work out for whomever else. I just wanted to point out a perspective that is different than others have shared.
Also, just for the sake of sharing because I'm not sure if it's something that we on the spectrum deal with (across the board, if you will), but I am not very good at determining ages of folks past a certain point..??? I have a lot of trouble deciphering ages from about 25 to 50 years old. I mean, I am horrible at guessing to the degree that, when I do start dating attempts again, I hope it's cleared up for me someway easier than being rude and having to ask. Oops.