I can't find where the parent mentioned drinking.

But to stab at that anyway, it wouldn't be silly if he did. People driving impaired for lack of other good and affordable options is an emergent reality, no matter how morally hazardous it is.

I don't drink, but it is very, very inconvenient if your activities are constrained by the train timetable. Much better to have a car available and be able to travel when you want to.

Of course sometimes you dont want to travel late or at weekends