What is the benefit of the terrible twos? my son missed them by 10 years

Preparation: The terrible twos help prepare the parents for teenage years. This is the best answer i can give.

I agree, the job of : 2-year-olds & teens is to strive for autonomy or independence. The parents' job is to set enough limits to guarantee the child's safety, health & development of age-appropriate prosocial & coping skills yet allow enough latitude for him to explore & learn to deal with his environment appropriately. Set rules & consequences, then follow through consistently without expressing anger. It's tough!