Humans are not dogs. Anyone who thinks it should go any further than that point is sick, and represents what's wrong with society.
I tried it once with my own child, but they put him back into foster care and put me on the sex offenders register for using a lead to walk him to the park. Almost lost my position in the priesthood, but fortunately my fellow fathers were sympathetic.
No insult intended, but we already proven you can, the greatest example of this is the Military, or more specifically the Marines. It's also a hallmark of corporal punishment.
Milli Vanilli, Bigger than Elvis
This type of enforcement actually does happen often, but with different rewards. This is a central part of behaviourist thinking. People learn from the consequences of their actions and when these consequences are deemed as pleasant, the behaviour is likely to be repeated.
School children are taught that studying and putting effort into their work is rewarded with better grades. Different reward, same mechanism.
Basically dip shit stuff like this also goes along with it, and people eat this garbage up, pumping people up to think that they can run through walls because they have the right mental attitude, rather than any other physics or reality.
Milli Vanilli, Bigger than Elvis
Pretty much this. While on paper it sounds.....fine I guess (trying to use words carefully here lol) you do not want to instill that behavior in a child. If they get it in their mind that anytime they do something right they get a treat you will ruin that kid for life. The day they do something good and don't get rewarded for it would create issues.