Just wondering what the general feel is on this topic. I am not trying to stir shit up on here, I am just really curious. My son is 18 months old & my mom has been hinting that he needs to get popped in order to understand boundaries (such as not hitting/biting- which is crazy to me).

I don't plan on disciplining my baby this way, but am wondering if I'm being too lenient? Is he getting away with too much because there is no physical/painful consequence?