Not a fan of broken glasses.

Me, too. I thrash enough to throw my glasses off if I were wearing them. 😱I take mine off because I don't want them to break.
On the one hand, I find glasses to be super cute, and I love seeing bespectacled 'lees in artwork tickled silly. It's especially adorable when, in the throes of squealing and squirming, their glasses wind up crooked and half hanging off their face. On the other, though... yeah, it would kinda sour things a bit if the 'lee's glasses ended up broken. Just one of those "better in fantasy" details, I suppose. XD
I suppose that, much like with magical floating feathers, magic indestructible glasses could be a thing! 😀