I hate those screwed shut battery compartments, I was just talking to my friend about that the other day, it had never occurred to me that it was some kind of a legal requirement. I also hate "child proof" packaging, what a joke, I still remember when I was about 4 years old my grandmother used to ask me to open her medication bottles for her because she had difficulty with the "child proof" caps while my small nimble hands could open them without difficulty.
It's easy to say "it would matter to you if it was your child" and yeah that might be true, but you have to look at the big picture. All manner of things around the house are hazardous to kids and it's a minor miracle that any of us make it to adulthood but we did, even with the much more lax safety requirements that we had when I was a kid. There is IMO far too much legislation intended to protect everyone from themselves and much of it brings unintended consequences. Useless feel-good legislation is a plague.