Don't show children things that they don't understand.Since he doesn't know anything about people, you can't turn him into an adult, you have to act like a child.What you think is useful to him in the future, you can only tell him what is useful now.Also, when he starts judging, don't compare him to other kids, don't race, don't compete, even if it's just a race.I'd rather he learn nothing than let him learn from pride and envy.Year after year, I would just watch his progress, comparing one year's results to the next.I'd say, "You're growing, look at the ditches you've crossed, you've carried something this heavy, you've thrown rocks this far, you've been running for so long without stopping to rest, wait, here we go See how you're doing now." Encourage him so much that he won't be jealous of others.It's okay to want to be better than yourself, I don't see any harm in wanting to be better than yourself.