I don't think reasonable is a good word, here. Of course it's reasonable. But when all your other coworkers are 20-something singles who can and will stay to 9p

I don't think reasonable is a good word, here. Of course it's reasonable. But when all your other coworkers are 20-something singles who can and will stay to 9pm, how do you remain "competitive"? Obviously, ideally none of this would be necessary. But alas...