Why is there never a button for just the tip?

Plenty of homes in rural NE that (while not as small as this) are still well within the 60% mark for garage ratio. They tend to double as workshops or large enough space for farm vehicle maintenance.

Considering the amount of rural settlements and farmlands / ranches around the US, I’d say it’s not necessarily unreasonable. Can even find them in suburbia, albeit more rarely (have in-laws with the living space lofted over a full garage, which would put it at ~50% minimum before accounting for interior walls.)

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.