I do to just in case something is wrong with the parking break, then the first gear keeps the car in place, especially on a hill.
I had my car demolished once while it was parked and someone parked higher up on the him, forgot the parking break and had it in neutral. They just quickly went to the small backery to get some bread, while their car solled down the hill and hit my car. Had to buy a new one, it came down with such a force.
My guess ist that even if it would be better when it comes to generic text, most of the texts which really mean something have a lot of context around them which a model will know nothing about and thus will not know what is important to the people working with this topic and what is not.
Capitalism is awesome!
So are nightmares and religion, but they still can fuck you up ;)