Bored people find it hard to meet friends. Doing things you like helps you meet people who are like you and will like you. Drinking and smoking makes you or your kids age prematurely and stink. Help your kids develop areas of interest in which they can excel. The best things in life cost little money.
Libraries have excellent books and many kids' activities.
Chose active rather than passive activities. Build something instead of watching TV or talking on the phone. Have kids review their future, think what they would like to do when they grow up. Have them read about it, study what people in different careers do and why. There are many ways to achieve ideal weight and lead a healthy life.