How do you decide how many kids your Sims have?

Well I do often end up giving my sim couples at least one kid because I am just too curious what they would look like :lol:

and I also like to have sims with long family trees out and about

1-3 is like the usual number really

or maybe they end up having close to infinite number of babies because its way too much fun to find out how the kids turn out to be or i get twins or triplets or alien babes

I only limit when it becomes too much of a chore or I get bored of certain sim genetics like if I have 10 sims that are too similar it tends to turn into survival of the fittest real fast as i start making excuses to make their lives shorter