The age limit for the Marines, is currently 28.......but you can still join in the next year or so.
Don't leave it to the last second.
Not everyone who joins is 18 years old. Ages can vary from 17, with a waiver, to 28.
They called me "POPS" in boot camp, and laughed their azzes off. Yeah, then they stopped laughing, when I smoked them all on the runs, and was picked to represent BEST recruit from the company.
Age doesn't mean sh*t compared to ABILITY.