What are some mecha series from 1994 or before where all of the pilots were 16 years old or younger, or where a reason was given that the only possible pilots had to be young?

I know of a few from 1996 and after, but I'm asking because Neon Genesis Evangelion is spoken of as a deconstruction of this trope, and I can't think of any mecha series from before it where ALL of the pilots were in their mid teens or younger. Not off the top of my head, anyway. Several Google searches tell me that I don't know how to Google for the answer to this, either. I found some lists that should theoretically help, but they aren't sorted by year, and I didn't notice any entries on them that I know are from before 1995.