I don't have children, but your article is in line with my observations.

I recall my first trip on ANA. When pre-boarding was announced, some flight attendants came out to help the families with children, either to carry the diaper bags or to lead the children by the hand.

You might want to add that even small children are required to take their shoes off in shoe-free situations and that slip-on shoes are a better option than lace-up ones.