Young people gathered in Berlin’s central Potsdamer Square on Thursday and marched through the German capital to protest against the government’s plans to reintroduce military service. While the police counted around 3,000 participants, organizers claimed there were 6,000 demonstrators in Berlin and 50,000 in more than 130 towns and cities across Germany.



Here’s a German native with that same question. So yes, it seems like a loaded term, but a very common one.
Yes, from what I’ve seen that’s also a problem, because people use «men» and «girl», so a child term for women and an adult term for men. I think the point is to use the adult form, if you’re not talking about literal children.