I many cases, no. Where I live, a 16-year-old cannot:

• vote
• enlist in the armed forces
• sign legally binding contracts
• legally purchase alcohol, tobacco products, or cannabis
• buy lottery tickets or gamble at a casino
• serve on a jury
• buy or sell property
• marry
• inherit money or property
• own a credit card
• fully control their own medical decisions
• register as an organ donor
• quit school
• get a tattoo or a body piercing
• move out of their parents’ house

Some of these things can be done with parental consent or if particular circumstances apply (such as if the child in question is legally emancipated). But broadly speaking, there are a LOT of rights, responsibilities, and options that do not apply to anyone before the age of majority (18 here).