You are a respectful person and are not pretending to be something you are not. Heck, I wear a Patriots hat and I was not a football player. No, it is more so when someone wears a pin like dolphins or the SEAL emblem. That is usually where people do not like others to wear them because of having to earn them and so forth. I was in southern Cal a few years back and a former soviet sub was tied up next to the Queen Mary, it was called the Scorpion and you bet I bought a hat. So, do not worry about stuff like that, just take the plung and see your Navy recruiter and raise your right hand and have an adventure...