Family Teachings and/or self learned skills

So i was wondering, a lot of times we have to learn all the new skills by ourselves because as kids we were not told about it, and when you become an adult you get hit by the adulthood truck just in the face and you got to learn A LOT .

Same thing with sales, when i was a kid my parents NEVER told me anything related to that, even though my dad was a salesman, or maybe I didn't even realized he did

So i would like to know what skills did your parents teacher you for adulthood and or sells, or what skills you wished your parents had taught you, which of the skills you use today had to be learned the hard way?