For the record, I do have the same job my father did and I fully understand why some people do follow their parents footsteps. If I grew up on a starship, I could see myself wanting to join starfleet. But although I followed my father into teaching, he didn't follow his father into working for the phone company and my grandfather didn't follow his father into making fur coats and my great-grandfather didn't follow his father into baking. I can't go back any further than that--which makes it even less likely that someone can play their ancestor 150 years ago.
I don't know. My next door neighbors belong to a long line of firefighters. Five generations so far. And, of course, there are family farms that go back many generations as well.
How long have the Picards been in the vineyard business?
Oh don't get me wrong, a few people following the family business is one thing and is and will probably still be common in the future. Inheriting the family business even more so.
My complaint is with everyone's identical grandfather also having been a starfleet officer.