Ehh tracer I think there is some bylaw that says the bartender has to open it or sumshit, it annoys me too.
I can understand why they would open bottles just so they wouldnt have to clean up hundreds of bottle caps off the floor every night. plus if you order a beer thats not a twist off and you dont have an opener on you, youve got to barrow one from somebody. why not just have the bartender open it for you?
i feel like the only time i get served a canned beer at a bar is in trashy bars and its usually a pbr. not really the situation to be complaining about anything stupid like a can being opened by someone else if you ask me.
only thing that gets me peeved in bars is if i order a G&T or a tequila and it comes with a lemon instead of a lime. not a huge deal, but everyone knows limes are made for those drinks.