Then I don't get how you don't get the selfish part. You could have COVID any time without knowing it. As someone working with the public regularly, you're actually far more likely than the average person to have it. Any contact you have with people is a chance to infect them. Which means the responsible thing is to minimize non essential contact as much as possible. You have to go to work. You don't have to go drinking every night.
Some of us have zero socialization right now. Since March, outside of a few doctors appointments, I've gone inside a building that isn't my house 3 times. Once to get a flu shot, once to vote. The one thing I've done for me was for my anniversary me and my wife made a trip to a liquor warehouse, in the middle of the day on a weekday. There was like one other customer in the whole place, and i still felt bad about it. I had my parents over twice, after they quarantined. I've seen no friends, no other family, nothing to protect myself and others. To limit chances of spreading this as much as possible.
I'm not saying everyone has to go to that extreme. I understand the desire to see friends and family now and then. God do I freaking get it. Every night though? You're going to do you, but don't lie to yourself about what you're doing.