@solar_chase Firstly, congrats! Now, onto the more important business of classification lol...I thought you had two kids as you sometimes refer to a Small Child, like there was a Big Child too. Would Small Child become Big Child in future?

@RichPushButtons Small Child is indeed our first. I called her the baby, then the toddler, then the Germans have this word Kleinkind (=Small Child) which fits her quite well at 6.

I guess I will do what my parents still do and refer to them as Child Number 1 and Child Number 2...