Especially in NYC. Bike delivery has been a thing there long before uberdashhub. Hell, it was a fucking plot point in Spiderman 2 back in 2004:

In high density urban settings this is absolutely true. 99% of my orders are delivered by bicycle.

I’ll add in addition to the “not where I live” replies, I live in pretty textbook white suburban america and I believe I have never seen anything delivered to me or a neighbor or relative by a two-wheeled vehicle of any kind, even motorized. Every single time it is a private 4-seat passenger vehicle or larger.

It is different in other areas of course, like when visiting cities and other countries.

But damn are such vast swaths of suburban and rural america designed so specifically around cars. It would take forever to change even with a progressive culture & government. With the culture and government we have now, I will be stunned if I am not driving my own vehicle for the rest of my life, and I will not be surprised at all if it’s mostly ICE vehicles. I drive a well maintained 13 year old Mazda3 that gets 40mpg, so it’s not ideal versus more efficient and environmentally friendly types of transport, but at least it’s a more efficient use of the existing infrastructure than most americans.

The large majority of them are made by cars.

I see you've never been to the Midwest. Or the south. Or anywhere that isn't Boston/new York/San Francisco.

Not where I live.