What you do outside of work hours is your business. No customer, parent, or boss should have any say in what you do when you're off the clock. I feel bad for people with highly scrutinized professions, like teachers, who need to drive an hour away to feel comfortable going to a bar. So many parents expect teachers to be more moral than them, even when the teachers are nowhere near their kids. It's a highly unrealistic expectation that shouldn't be projected onto anybody.
Teachers aren't the only people who get shamed for having the audacity to drink a beer at a bar. It seems that anyone with a public-facing job can get shamed and criticized for trying to be a human being outside of work hours. One hotel desk clerk was spotted by a Karen after his shift at a local college bar, and she made some bogus complaints to the hotel about this sighting.