My friend invited me when I was a kid. I regret that I passed up the opportunity to enrich my cultural experience. I also passed up a trip to Europe as a teen. I don't know what I was thinking! *kicks self in arse*
A few, Bar and Bat Mitzvahs. I thought it was wonderful, a really cool way to acknowledge one's "coming of age".
We have them at my hotel all the time. Ritual parties are fun. I don't think anything of it besides that. I'm glad they give attention to their youth in a way other than a birthday. If we show kids we care, maybe it will stick and they growing caring as well. Couldn't hurt to try. I'm not Jewish by the way.