When I was about 20 a supervisor at work was leaving, and my work associates planned a going away get together.
Since we worked in the evening, they "unofficially" shut down the office.
We all went to a bar (drinking age was younger!).
They served food and everyone got drinks. It really seemed to bother everyone since I didn't "drink".
(My 1st choice --- Diet Coke--- wasn't invented until 1982 so ....)
I drank lots of 7up. Whenever I finished it, someone made sure I had a refill.
This was before free refills

But I don't think bars give pop refills anyway.
What stands out in my mind was the desire that I also have a glass of "something". Apparently people don't like to drink alone
(we were all on the clock so to speak and returned to the office after a couple hours)
My only bar experience.