Don't be dumb. I'm not gonna beat my children, no.You seem like someone who would get jailed for beating your children.
Unwanted physical contact is not something you just "suck it up and bear it" for. At any age.
But I will be a strict parent. There is a difference. And I'm not gonna teach my children to be rude to family members, by refusing a hug for example. If grandma wants a hug, don't be a self-entitled prick, give grandma a hug.