Quoting The TTC Queen Bee:" They aren't monsters, they're kids
My one year old knows better than to bite or hit or hurt our animals... They're hurting another living creature. That should have some serious consequences. DD knows better than to even BITE, period. She rarely hits. She tries to use her words. And she's 14 months old. If a 14 month old can be taught the word GENTLE and know not to hurt animals and to be nice to them, and to other people, I'd expect a 3 year old and up to be exemplary in that regard.
Her wording may have been bad, but I hate when people say "Oh they're just kids" and dismiss the behavior. I sure as hell didn't squeeze our kittens and throw them as a child... I was taught NOT to.