[akkartik]

His point isn't that spending too much time with children causes them to be spoiled.

People should spend every possible moment with their children. They should also spend every possible moment learning about the world, and every possible moment trying new experiences and getting out of their comfort zone. There aren't enough moments, so you need balance. Lack of balance in one direction is correlated with spoiled children. I think that's all he's saying.

(Personally I think it's hard to cause irreversible damage by spoiling children; it's amazing what they'll outgrow.)