Wow man, someone really fouled up your perspectives on a lot of things. By your reasoning, maybe you shouldn't wear your uniform to work since they serve booze on the flight.

Or just lighten up Francis. Company policy certainly covers the difference between going to a bar or liquor store and going to a grocery store (or gas station, or any number of other places to-from work) and that's more than good enough for me. Your priorities are whack, and really it does sound like you're ashamed of your work attire, or maybe just excessively self-absorbed. Nobody cares if they see you in your uniform somewhere other than the airport. Really, they don't. Your kid's school? Don't care. Hockey rink or soccer field because your commute home gets you back right when your kid's game starts? Nobody cares. Grocery store because your wife is watching the kids and it's getting late but she really needs something for dinner? Nobody cares.

Pro tip - it's just clothing and you can wear it anywhere your company doesn't explicitly forbid, so consider getting help overcoming your hangups or at least don't project them on others like you're passing down the word of god.