Hi I'm sorry if this doesn't belong here and I'm still getting used to forums. Is there anyway they can have more than 6 children? On VF because it says 'They have enough kids already!'
I want a bigger family.

Unfortunately you are limited to 6 children.

Okay thanks but uhm how do you get a lot of money too?

save up and there is intrest you can look at the family bank account

Try not to spend much in the first couple of generations. Don't buy upgrades or extras for the house, just food (at first the 'ordinary' food) plus other necessities like medicine. As mentioned, they earn interest on the amount of their bank balance (at 10% a day) so it soon mounts up.