I have 2 children and found the workload goes up significantly on the second. No economies of scale there, in fact the reverse as with one you can take turns wi

I have 2 children and found the workload goes up significantly on the second. No economies of scale there, in fact the reverse as with one you can take turns with your partner to look after them but with 2 it's typically all hands on deck. Also regarding extra curricular, people might spend the same time socialising etc but this counts as time to re-charge and get back to work. If you spend a couple hours getting your kids dinner and into bed you don't feel like heading back to the desk the same way you do after a game of tennis with friends.