While not considered to be at high risk for severe complications from Covid-19, serious cases do occur among younger, healthier people. The Centers for Disease Control and Prevention (CDC) also warns of the potential long-term health effects of Covid-19 infection, even for those who experienced mild illness.
In addition, young people can still be carriers of the virus and contribute to community spread without ever having symptoms.
Therefore, you should still get vaccinated when one becomes available to you. Aside from offering personal protection, getting vaccinated will help our country achieve herd immunity.