Club sports at USNA are, by definition, done on a “walk-on” basis. Meaning anyone can try out. Doesn’t mean you’ll make the team, but you’re welcome to try. Different teams have different policies for those with limited experience. DD is on a club team with a few members who have little competitive experience. Those players participate in practices, but don’t travel. They may suit up for home games, but rarely play.
(The term “walk-on” is typically used at the varsity level, where those who aren’t on athletic scholarship are allowed to join the team without the benefit of financial support. Of course, at USNA, everyone is “on scholarship.”)