Yes, I am aware that it is perfectly possible to have a healthy vegan diet at any age. I know that.
However, it is more difficult and easier to get wrong if you want to be vegan. It still is restrictive (even with all of the new stuff coming out) as in you need to tell hosts, check menus in advance etc.
It's a barrier that has to be overcome. I don't understand why you would do that to someone who has no choice in the matter.
Lots of kids go through a fussy phase too, add veganism in and surely you're at a high risk of health problems?
I think what I'm getting at, is that childhood nutrition can be hard enough as it is, so it just feels wrong to make it harder for reasons that do not directly benefit the child.