Its much more than just not forcing to finish, it that's where it starts. Inthibk for me it clicked when I started doing it and was still in the jabit s I had learned as a kid to finish your plate and I was telling elder kid at 5 to do ish his chips (fries). It occurred to me that I didn't want him particularly to eat the fries. It was just bad habit.

Friends and strangers are shocked when my youngest who has a sweet tooth declines cake or ice cream when not hungry.

The concept is that by restricting it, it becomes a forbidden fruit kind of thing to consume when available. Making it more available (but still maintaining control of when and how much) allowsnthem to eat intuitively when needed. Also to never look at their nutrition through the lens of one meal but over a week. If they font eat their carrots today but have had plenty of fruit and vegetables over the last week, why stress?