In almost every culture throughout history up to the industrial revolution, almost everyone worked in agriculture. I'd gladly trade 8 hours a day working mostly on interesting problems comfortably in an air-conditioned office for somewhat fewer hours of manual labor outdoors.
How many spend their days rolling Yet Another CRUD App(tm) gilded with the latest fad?
How many "solve" the same problem, over and over and over, with only a small twist--different platforms, different languages, different architectures, different industries, etc.?
I read things like this, and think, so you have never done any manual labor, nor your parents or grandparents or relatives? Not your chores as a teenager, your first job, or anything? Is there nobody in your extended family who spent their retirement years in agonizing pain from the effects of lifting things all their life? Nobody who died early from an accident on the job?