Unlike some crimes, driving violations do not clear from your record when you turn 18. However, most states have policies in place that clear your driving record every few years.
Of course, points are not the same as your driving record—especially for insurance companies. While insurance companies won’t typically hold your violations against you forever, you’ll likely have to pay higher premiums until you prove you can consistently drive safely. Since young drivers already face high premiums, a young driver with violations on their record could face astronomical car insurance rates.