Just a few days ago my daughter said to me, “Dad, you aren’t my friend.” And I said, “I’m not supposed to be your friend.” She’s 13.5, starting the transition into increased autonomy, testing the lines everywhere. But that’s another story.
The question here is why can’t parents get control of their children, and as is natural, we are getting a lot of personal testimony in response. And perhaps that’s what the OP wants.
Still, it’s probably impossible to answer this question because there are so many variables and none have been defined. What is “control” for example? In this case it seems to mean keeping children from disturbing other diners. There are, however, so many other situations where one might consider children out of control. In particular, I think the area of how they relate to other children and how they resolve disputes is incredibly important.
Certainly, learning about social rules is important. But here’s a problem. Not everyone agrees on what it means to be polite. In many communities, children run around everywhere and no one thinks anything of it. The children, if they need discipline, can be disciplined by anyone in the community. If you came from a culture where that was the norm, I can easily see parents letting kids run around the restaurant and then castigating the hostess for letting the child go out.
There are, to be sure, parents who don’t know how to train their children. There are parents who don’t care to train their children. There are parents who don’t care about politeness or about what other people think (like @velvetmelody). There are probably as many reasons why parent don’t or can’t control their kids as there are parents.
As to methods of “control.” Far too many parents think they it is their job to control their kids. In my opinion, it is my job to teach my child to control himself or herself. I want my kids to be able to think on their own; to assess situations and respond appropriately on their own.
The research is pretty strong in saying that using physical punishment to control kids doesn’t have good long term outcomes. Spanking teaches kids about external control They learn that their parents control them and they have a much harder time learning how to control themselves. Or rather, they learn to control themselves based on rules, not based on assessment of situations. The problem with this is that when they run into a situation they don’t have a rule for, they don’t know what to do if the parent isn’t there.
This is the attitude that the military and many low-wage employers like. They like workers who only follow rules and don’t think for themselves. This is the kind of training that makes it harder for such children to grow up into leaders, managers or creative people. Not impossible, but definitely harder.
It is possible to train children to behave appropriately without hitting them. Lot’s of people do it. But you aren’t going to train your child, no matter what method you use, if you don’t have the same standards as other people.
I’m sorry, but if you can’t stand the annoyance of a few kids running around occasionally when you are at a restaurant, then don’t go out. There are many things that bother us. I, for example, can’t stand cigarette smoke or perfume. Both give me headaches. That doesn’t stop me from going out. I’ve been on planes with babies that scream for five hours. That doesn’t stop me from flying. My point is that the world is full of things you don’t like. Either take initiative to try to help the thing that annoys you go away, or stop complaining.