If you want to wear a uniform join the Navy or Coast Guard. Check out the Merchant Marine Naval Reserve Program MMR program, they only require two weeks a year of service.
Dude, do what you want, but I suggest you don't let the guys from your ship catch you wearing a Navy Captain's uniform or a pretty dress and high heels. It's your choice.
Many of us on here, had to wear uniforms as cadets, but most of us did it to get the license.