Spanking is not the equivalent of abuse. People that don't spank their kids are the problem.
I disagree. Children should never be hit.
Plenty of research shows that it is harmful for childhood development.
There used to be approval of hitting children--to "beat it out of them" in other words.
In the 20's in Germany before Hitler the manuals explaining child pedagogy advocated swift corporal punishment of children using the strict Father model of patriarchy, authoritarian and obedience-based methods.
Incidentally, the books about dog training were similar.
Physical punishment will also locate a child's "disciplinary authority" to adults or even peer groups. The child is made bereft of instilling self-discipline and is easy prey for other adults--sex deviants included.
Hitting children seems to be one of the mainstays of conservative folks as well as many traditional Christians and fundamentalists. But the world is becoming more inundated with new and effective tools to raise up a child to be moral without physical punishment.
That's just my opinion--based on studies and anecdotes I have seen.
My daughter is 32 and she was never hit. And she is a remarkable woman who is kind, moral and open to life.