Even with an alley design (which I prefer immeasurably over the ugly “snout houses”) the garages generally hold at least two cars. Do that many families out there actually have 3+ cars?!? Do they really NEED that many? I live in an older neighborhood with alleys (Kensington) and I don’t notice a huge problem with all the street parking being taken…
I guess it all depends on the people who live there. For instance, Asian in general, tend to stay home with our parents much later than other nationality. I’ve seen many Asian families where their sons/daughters live with then until they get married or at least engaged. Imagine if the parents have 2 kids, that’s 4 cars already. If each kid have a bf/gf that come over often, that’s 6 cars. Now what happen if the parents have 4 kids? See where I’m getting at? These are all adults who NEED cars to get to work. They just decide to live together and want to live together. With these 3k+ sq-ft house & 4-6 bedrooms, there’s plenty of rooms to house all those people comfortable but there won’t be driveways to hold all those cars. Then you have people who live in a certain place for a very long time and start to accumulate things and use their garage as a storage. Now, the 2 car garage can only hold one or none. That would be another 1-2 cars on the street. Then there are people who have project car in their garage being rebuilt, so there’s no room for daily drivers. Alley houses with no driveways are not very suitable for families with 3+ cars. I’m sure that’s the majority, not minority.