Long ago, I heard someone say, "When you have a child, your heart walks outside of your body for the rest of your life."
What makes it harder is when you have to watch mistakes that your adult child makes. It's hard to know when to jump in to coach and when to sit back and let life do the coaching.
Most of what we learn in life comes through our own experience - through trial and error. Skinning our knees is a natural - and necessary - experience.
Sometimes, the most loving thing you can do is let them skin their knees, because they won't learn what they need to learn any other way.
Tough act sometimes, parenting...