It's something that a child could do by accident. Hence such warnings. Like warnings against many possible dumb things a small child could do. Long ago as a toddler one of my cousins ate a bottle of orange-flavored children's aspirin and ended up getting his stomach pumped. Ah, the 1960s. (He's fine.)
It's not a reason to be paranoid about aspirin....or fluoridated toothpaste.
It's not a reason to be paranoid about aspirin....or fluoridated toothpaste.