What necessary things should parents teach their son?

Here are some of the necessary things parents should teach their sons.
Teach them to respect everyone: Respect for others is an important feature they should possess. They should teach them to respect boys and girls, not to be rude to anyone.

Teach them to be kind: teach your sons to be kind and show empathy to everyone including themselves. They should be kind in their words and actions.

Be yourself: teach them to always be themselves at all times, let them know that there’s no better version of them. They should learn how to be true to themselves.

Work smart: teach and let them know that it better and cleverer to work smart than simply working hard.
Teach them to be diligent, honest, determination, responsible, humble and patient.