请根据这个话题发表自己的看法（英文）

When I was a child,I was often spanked by my mother.I think this way to educating thier children is only suitable for the kid of 5 to 10 years old.So when they've grown up,parents should not spank thier children any longer.According to certain statistics,if their parents do that,then children will beacome more and more intractable.So there is no perfect policy on this issues.What parents need to do is they should be models of thier children.