I only raised one child of my own. Seems like through a long time of coaching youth sports I have made an impression on a great many others, plus my friends who seemed to be at a loss with their own. I lost my father when I was pretty young and the influence he had over me was missed in several ways.
What I learned (seemed like it took forever, but 5 years is a long time when you started said learning at 13) was that who you pick as friends and associations was every bit as important as my father tried to make me see. So when my young friends reach high school I start subtly leaning on them to take a good look at who they associate with and start to distance themselves from the users and losers. As warm as a friendly relationship can be with some of them, the mental and financial burdens of "helping" those sorts along is too costly to most. So by 18 and you are on your own, off to college, off to a trade I tell them they need to be free of carrying someone else in any way shape or form. The one sentence suggestion is to pick your associations very carefully. More and more that includes family.