About the milk.
I didn’t like hot milk either. But not because of the foam, it could be moved and smashed on the wall of the cup; and not because of the oil, I hardly felt it, the main thing is not to swallow that floating piece on top; and not because of soda, from it even the taste was pleasant.
Because it was fucking hot. So hot that I then had burned skin from the sky (this was also fun, but not pleasant). I couldn’t even hold the cup in my hands, it was so hot. In general, the phrase “hot milk” did not delight me when I was a child.
So my parents were very surprised when the milk brought was not very hot, and I drank it right away.

And still parents, I think, sometimes forget that a child's stomach is smaller than an adult's, and 200-300 ml of milk will simply not slip into it if the child has already eaten.