Once your kid is 16 years old, he/she should not take a penny from you. Let them work in McDonalds or any where, and learn real life.
Give them direction, but don’t solve their problems.
Don’t get them leases on your name. Let them buy a used car or use public transportation.
Don’t send them vacations. Send them to study or work abroad.
Give them books in their birthday.
Buy them ingredients to make a sandwich, don’t buy them a sandwich.
Raise productive positive members of society, not spoiled motorcycle and mustang brats.