ATTENTION MINECRAFT PLAYERS: I accidentally set something on minecraft comes alive

I pressed something that doesn't allow my kids to grow. They stay the same height and Size and I tried using the villager editor but it doesn't work please help if you know how to change it. I really don't want to start a new world

So apparently in villages, there would only be a maximum number of adult villagers 35% of the number of doors in the village. (They love their doors) I think they said that children could grow as usual if this consists.

I don't believe there's anything that would produce this result you speak of. What button did you press? In the menu, the keyboard?

What is this village editor?