I noticed that as my toddler grew stronger, had to swap some of those petg ones with touch PLA. It's more rigid, so stops him from getting in. But they do break eventually.. I keep a few spares and probably run about replacing each one every 2-3 months.
glad you liked it. PLA tends to be a bit brittle but stiffer. So I use PLA where the toddler can yank the door open (but need to replace it every time we end up breaking it). PETG is more durable but there's a chance the toddler can yank the door open because of the flex