teacher offering toys for all kids to put in mouth...

I'm a FTM and tbh haven't been around too many 1 yr olds. My little guy likes to put everything in his mouth and dropping things/doing normal 9 mouth old things. Obviously I know that's normal but we go to this one music class and the teacher gives us like blocks, chimes, drum sticks to play with. She goes around and plays these chimes to every kid and she lets them play with them and hold them... my little guy of course just wants to put it right in his mouth. I cringed big time tho when she let him... she goes around to every kid in the class and most of them put it in their mouth 😬 ugh I was just thinking he is totally going to catch something for one of these kids.