Second, children who are about to go to college usually have a laptop, not only for entertainment, but also for better study. So parents can prepare a computer and give it to their son at the bar mitzvah.
Third, boys are generally interested in stars and sneakers. You can buy a pair of sneakers for your son. When he gallops on the playground, he will also feel the love of his parents.
Fourth, there may be less communication between the son and his parents at this time. Parents can write a letter to their son to express what they want to say but don't usually say. Maybe this way can make my son more mature!
Adult sons can try to wear leisure suit, so that they can dress their sons in suits. Light gray, wine red and other colors are good choices, mature but stylish, more attractive.