American houses often have a garage entrance in addition. Depending on the season you’ll want sores in the back too

I grew up in a house that had 3 back doors, a front and a garage door. Turns out that multiple remodels really messes with layouts. Where to put your shoes was a big issue

I think it's an artifact of this whole "your home is an investment" thing we do. It's like if you're not planning upgrades that make it look better on zillow (upgrades that potentially invalidate initial design considerations) then you're being financially irresponsible.

Four: two to the front patio, one to the back, one to the garage. It's kind of a dumb layout.

Maybe I'd feel differently if it were barefoot temp year-round, but that's pretty much just a summer thing here. Plus it's kind of irresponsible to heat you house to barefoot-friendly temps so now you've gotta have slippers for everyone...