If you want to participate in parenting, you'll want to be somewhat fit. You can expect a lot of lifting, carrying, squatting and sitting on floor, stroller pus

If you want to participate in parenting, you'll want to be somewhat fit. You can expect a lot of lifting, carrying, squatting and sitting on floor, stroller pushing, running after etc. Better chance you won't get exhausted by that at your thirties than fifties.