My mother in law actually told me to quickly have a 3rd one when I was still pregnant with No. 2. Her rationale was quickly get it over and done with, they can grow up together. I asked if she was going to help me look after, that shut her up very quickly.

After I had No. 1, not one of my ils dared to ask me when I was going for No. 2. I had a ready answer - You/Ask my SILs to give birth 1st, then we can talk about No. 2. My BILs are all childless.

I agree, it's easy to have kids, but the teaching/educating part is the most dificult. Coupled with all the worrying parents do, it's no wonder we all age so fast after having kids!