My three year old always wants food. She is not overweight at all though, as she is so hyper active all day every day ( a trait from me ). As long as a child isn’t eating stuff that is bad for them in their every waking hour, then it’s all good.I don't understand why everyone gets so hung up on his portion sizes. Id be heavily judged like you say always easier to make excess than have no extra.
My son probably eats the same amount if not more. He's the same age. He's happy, healthy and active so i don't personally see the problem
I am very fortunate that I’ve been taught to cook well also, so my daughter usually has yummy, nutritious home-made meals (lazy days happen )