The best theory I have is to build rock-solid boundaries, but to do so at a meaningful distance. Humans and animals are good at working with a "duality" of personalities. Children should have plenty of space to explore, be creative, and develop relationships, but going beyond a certain well-established limit brings out the bad cop. A lot of 123 methods looks like, to me, ways to make the kid recognize and respect the bad cop... but still have confidence that bad cop won't show up if they will stay inside of defined bounds.
Constant behavior correction is terrible, and leads to psychological problems. Too much of what I see takes this problem and turns it around to "no correction". That's probably not AS bad for the child, but is inviting disaster on the part of the parents.
It's all about controlling your own behavior.
When my spouse and I were expecting, I actually took a class on 123 at the hospital. The instructor gave one piece of advice, which I still remember: Your home environment when you were growing up will determine whether 123 will work for you now. Nothing works for everybody.
My kids never found out what happened if I got to zero.
I think the method was useful because it distracted them from whatever they actually wanted to do, just long enough to get their minds on what I wanted.
BTW I never heard of 123 but it just sounds like a pretty natural, common sense approach.
It sucks, but the reality (to me) is that you deal with the situations as they appear. Hardest part is managing your own exhaustion after little sleep, look after kids for hours a day for years, and trying to hold down a job at the same time.
Have to be real careful when forming associations this way, like some other poster tried with his kid potty training and messed it up. The whole situation gets associated not just what you want. And it is real hard to reverse.
So how do you deal with that? You take them seriously, and you accept that it isn't going to work at first, and then will work imperfectly, but will work fully when they're ready for it.
In the context of the article, it is rather unclear if punishment will work when a kid understand a rule but is unable to moderate their own behavior.
From that article:
> The outcome, as it's usually represented, is that the children who were able to wait for an extra treat scored better on measures of cognitive and social skills many years later and had higher SAT scores. Thus, if we teach kids to put off the payoff as long as possible, they'll be more successful.
But I did not use the usually representation. See the highlighted part I made? "The connection to the prefrontal cortex", ie the development of the brain to moderating social behavior in particular young children? The linked article is not debunking nor dispelling the link between prefrontal cortex development and the ability to moderate social behavior.
What the the article do debunk is the predictable nature of looking at early ability to moderate social behavior in young children.
> when the children were tracked down 10 years later, those who had been more likely to wait didn't have any more self-control or willpower than the others.
Which is possible true. It was just not the part I refereed to. Here is some sources if you like: https://www.sciencedirect.com/science/article/pii/S187892931...
"We suggest that input from these brain regions contribute to three functions involved in generating flexible behavior within social contexts: valuation, inhibition, and rule use"
See the connection between topic we are talking about and inhibition and rule use? Lets take an other study. https://www.sciencedaily.com/releases/2011/08/110831160220.h...
That one somewhat debunks the debunking article, but I have no horse in that race. The Stanford marshmallow experiment is simply a starting point on the subject, but its an old study with multiple claims, some that is likely to be false. One can always skip it and jump directly into the more heavy research papers from recent dates.