Terrible analogy.

In the front, yes - but knowing how much your rear might be sticking out is another story. That’s tough to judge with rear-view and side-view mirrors only.

Maybe it’s different elsewhere but at least in the Midwest US we have a range of different length parking spots, from very short to long, so it’s habit to pull as far forward as possible to ensure you aren’t sticking out into the aisle.

The courteous folks hop back in and reposition if they’re parked funky, but those types can be far and between.