Are bobbie-pins jewelry?

[BuggBob]

NFHS Rules. First play of the game I notice a player is wearing bobbie-pins. I call time tell team A coach there are players wearing jewelry, issue jewelry warning. Second to last pitch of the game (no kidding) I call time and tell team B coach players are wearing jewelry (this time it was an earring). Player wont remove jewelry so she voluntarily sits down and they play short, next pitch game is over. Team B coach thought I should have let it go as it was the second to last play of the game. I told him a caught fly ball is an out if its the first play or the last play of the game, and that I did not want some little girl owning my house because she got hurt after I noticed she was wearing jewelry.