Of course it is silly. That was my point.
This is why laws preventing citizens from dressing up are not only stupid but unconstitutional.
Now if a person dressing up tries to exercise any authority, or tries to gain money or profit from the impersonation, that is illegal. Which is why we have laws that prevent people from impersonating a official
and taking an action based on the presumed authority of the costume. That is a smart and constitutional law.
If I want to dress up as a police officer, I can. But if I try to exercise the authority of a police officer, that's illegal. Not the dressing up, but the attempt to exercise authority that is unauthorized.
The same goes for dressing up as a military member. Actors do it, re-enactors do it, and citizens do it. Nothing illegal about it, until they try to exercise any authority without authorization.
Now do you understand why dress up laws are not good, but attempting unauthorized authority laws are good?