It's interesting to view the posts on this thread when a simple question is immediately related to corporate package or freeloading off the state.
We should focus on the children who may feel deprived when they are growing up, but later are very proud of their parents.
I think with a family of two children, they tend to compete and fall out a lot.
With three children there is the risk of two making the third lonely; too much politics.
Four is a good number but I don't consider that to be a large family.
I think the larger the family, the children are happier and well-balanced however it is more expensive. Since today's consumer generally values a product by its price rather than its utility, spending on family is by far better value.
Regardless of all considerations, if parents want a large family they should be encouraged and supported unless the family size has its origins in religion or welfare benefits. I was at school with a boy who had fifteen siblings.
So I firmly reject any interference by state to dictate such a personal and private right.
Having said that I might not
strongly object to the castration of immigrants and Catholics.

Perhaps just mutter some inaudible protest quietly to myself?