Interesting subject, and I'm sure a lot of different opinions. I don't pass judgement on how others discipline their children, but am often annoyed by how undisciplined so many kids seem to be these days.
My father raised us kids (I'm the youngest of 4) in the 'old school' tradition. He demanded respect for him and my mother, and he was not shy about using his belt, or open hand to re-enforce that discipline, when we stepped over the established line. My father was a very intense competitive, physical guy back then. I really feel that he only did this when we truly were out of line, but it was terrifying none the less. I think it was even worse for my older siblings.
I love my dad, he's a great guy, and I have benefited by what he has taught me over the years. I understand that my grandfather was very heavy handed with my father, and I'm sure that's where he got it... A few years ago, I was visiting with my young son, and my father actually apologized for 'being too rough with me' when I was young, that he regretted it in hindsight. I could tell he felt really bad/guilty about it. My father is a man of few words, so I know he really wanted to get it off of his chest. I told him not to worry about it, I'm sure he did the best he could, and that I couldn't imagine having a better dad. I think it made him feel better. He's a very good man, he just handled things the way he was raised, but it was rough.
This being said, I do believe there is a better way of maintaining discipline, and control, other than resorting to it becoming physical. I'm the father of a 6 year old son, and 2 year old daughter. With my oldest, during times of stress, I found myself resorting to imposing myself over him, and really had to stop and restrain myself. I swatted him on his butt once, and the look that came over his face really hit me. I love my son like no one else, I waited 40 years to have him, and I swore that I would do what I could to find a better way. I don't ask for God's help in many things, but I'll tell you that I did in this area...
I'm sure that swat on the butt helped him gain a healthy bit of 'respect' for me, but really it just scared him. I don't like the idea of having to terrorize a child in order to have him understand 'respect'; it's counter intuitive if you think about it.
It takes a lot more work, and thinking, but there are truly better, more intelligent, more effective ways of reaching your children without scaring the stuff out of them. I'm positive that spanking the heck out of your kid will get compliance, but I believe it comes with a host of issues for the child down the road. I'm a pretty big guy, 6' 2" 200 lbs., and I've been around the block when it comes to physical confrontations. I'm pretty sure that when my son was 2-3-4-5, etc. years old, that he would see me as a pretty darn imposing figure when I would get riled up. I just felt that hitting him would break down the trust that he has in me, I'm convinced that that stuff really does damage kids. I found myself resorting to really yelling at him, that too is not healthy, and I've worked on that. I'm at a place now where I'm a better parent, and I have a wonderful, respectful son. And, I've talked to him about these things along the way, just because they're little does not mean their stupid...
I wish I could have done a better job, but I always thought about it, and tried to do the best I could. I think that's the best any of us parents can do, just try to do it better for your child than you had it. My hope is that he will be even better with his son some day...
I really think that you need to spend a lot of time with them, communicate to have them understand, stay diligent to back up what you tell them. Every kid is different, my oldest is very kind, and gentle, and I really don't see where getting physical would ever be an effective method. My 2 year old daughter is 10 times more challenging than my son was at that age, but I really am much more patient the second time around. Plus she's real cute, thank God! I find myself more amused by the hysterics this time around!
Anyway, I usually don't get personal on these forums, but this is a sensitive subject to me, and I like to share my thoughts on it. Thanks for the rant, cheap therapy, I guess!