>violence is a last resort
There is no last resort. Violence isn't the ultimate solution, it's the easiest one. You can't be arsed to sit down with your kid and talk with him gently, or you just think he's too dumb to understand communication and basic patterns (what a great parent you are with that mindset, by the way), so instead you resort to the option that has the biggest, most immediate effect. You know what fear is, you know what it does, so you use it against your kid to control it.
Really, I can't blame parents for being stereotypical, nor I can vouch against them, since I'm not a father myself, but violence will break your kid beyond repair when he grows up.