No physical violence towards children at all. That's my line, and there is zero compromise. When I was a much younger parent, I spanked my boys, and I know that it was out of sheer frustration and anger on my part. After I realized how wrong I was, I apologized to my boys and told them they would never be hit in any way, ever again by me.
We need to work towards laws that do not allow physical abuse of children, and we can draw the line at, no physical hitting, smacking, spanking, slapping, etc. I've seen kids arms pulled out of their sockets by parents who have no control over their anger and emotions when their kids get out of line. Fuckin idiots...should be arrested and put in front of a judge, and told one time that they will lose their children if they do it again. Sadly, some kids would only get one chance.
There's few things in my mind worse than physically beating kids. Hell, I can't stand seeing parents yell at their kids, much less hit them. The only exception I can think of is genuine self defense from a violent child.
Some adults will call me lame for being too nice, and not showing the kid who is in charge. But I have already had several adults in charge of children's camps, and other events tell me how well behaved my son is, and he has never been hit by his parents.
Anecdotal, but it's working, and I have no reason to think that any form of hitting or violence would have been as effective.