TTigg, congratulations on your recital! That takes courage. I know how frightening it can be as I let myself get talked into one or two a year, thinking that it's good experience for me. It does get better and, yes, it's amazing how the shakes manifest themselves in various parts of the body. It's fabulous that you were able to complete most of the piece despite the leg issues!
Bex: the recitals I play in do include children. My feelings about this are that the audience tends to expect MORE from the adult players even if they, too, are beginners. So you feel like there's more pressure on you as an adult to outperform the kids who are likely MUCH less concerned about what the audience thinks of them AND a whole lot less nervous.
I think W.C. Fields said "Never work with kids or dogs." Unless my border collie starts taking lessons, I have no fears from that quarter, BUT the kids are another story...they can usually pull off a better performance with less practice than a scared-out-of-their-mind adult!
(Edited for typo.)
Collector of sheet music I can't play.