Its awkward having other boys watching you while you dress out. It is a coaches decision to have them dress out in unprivate locker rooms as being a sixth grader I was nervous about it and then the lockers are so tiny that they are smooshed together .... TOUCHING.. .
Many boys couldn't care less and get changed with any other person that they know in the same room. Some boys however, are different and want privacy. Just because some boys are OK with it, it doesn't mean that you shouldn't respect the wishes of other people. I personally am OK getting changed as long as I know the people that are in there.
We're all boys so its ok. Just change clothes some kids don't care at all so you shouldn't care too much either. After a few times it feels normal even if your scared at first. Even to take a shower is ok too a lot of boys or some boys do and there ok with it to even be naked to other boys can see you but there all in your school so its ok.
First off, nobody is watching you while you change. Trust me. Dressing in the locker room gives teams bonding experiences and it lets kids be more comfortable around other people. Instead of saying "EW NAKED PEOPLE GROSS" try to just treat it as a normal thing and maybe you won't be so awkward. Locker rooms aren't going anywhere.