At that point, I think it's a parental concern. If you don't think a kid can be responsible, don't make them. Regardless acrylic is very flimsy and breakable. If you put any real force to it, it will easily break. I laser cut a pair of these and the laser melts and rounds of the acrylic very well. It's not sharp, so imagining a child to have the force to dig in and cause any damage is really astounding.