You shouldn't use a key from 30 years ago to open a door today. Every generation has its own mainstream values. Concepts only have pros and cons, there is no right or wrong. You were born in your time; getting married was beneficial, but nowadays, the disadvantages of marriage outweigh the advantages. Avoiding harm and seeking benefit is an instinct. Your child isn't foolish; if there's money on the ground, won't he pick it up? What you need to do is adapt to the times. Everyone is taking high-speed trains now; if you still want your child to take the old green trains to save time, it's quite absurd.