I think it’s fine to work 60-80 hours a week if you’re in a place in your life where you don’t have anyone to go home to and you can actually make more money off it (either as a contractor with an hourly rate, or a business owner). Not for long though, because it gets lonely.

Most people shouldn’t work more than 40 though. Definitely if you have a family, go home and spend time with them. There’s a saying in my language that translates to “work doesn’t run away from you”, as in, there will always be more work to do, but your toddler won’t always be a toddler.