In my attempt not to drill my young kids' exploration out of them, I tell them that "X is a tool, not a toy!", for values of X like knives, fire, light sockets,

In my attempt not to drill my young kids' exploration out of them, I tell them that "X is a tool, not a toy!", for values of X like knives, fire, light sockets, etc. And then promptly talk about how to use them :)