I'm not old, but I tell people that I don't check work emails when I go home. But I give the offer that they can call me. Usually this leads to almost never being contacted on the weekend or after hours, and only really when there is a dire need. People seem to be more hesitant to call or text than send an email, and so this method works. But that's part of the implied condition. I think it is fair to call someone after hours for emergency type stuff, but not typical work stuff.

Doing this has facilitated a healthy work life balance and I believe leads to better productivity.