A lot of progressive leaning regions are actively trying to slowly legislate cars out of existence, see the camera system in the UK that's being sttacked by the so called "blade runners".
Fact is cars are real freedom, and the next time the government declares a pandemic and determines that public transit is too dangerous, a car is your only movement option for going outside of bike range.
the gubbermint is coming to steal our cars so we have to live in their bicycle dystopia 
.
A lot of those people aren't ever travelling more than 5 miles. A cargo-bike with some electrical aid makes biking accesible for most anyone.
If you are disabled driving isn't really an option in most cases.
Most of the things that make bikes unacessible is inadequate infrastructure and an over-reliance on cars. Kids can't drive cars, they can ride bikes. If you have traffic that is safe enough for kids to bike on their own, then you have suddenly freed up their parents from having to transport them. The world is now also accesible to children.
It is easier for a walking-impaired person to cross a bike lane than a road. Bike-centric infrastructure is also more accesible for those that cannot ride bikes.
Bike-centric infrastructure requires not just bike paths, but a placement of daily needs within about 15 minutes radius. This placement again means that it is more accesible for the physically impaired - especially when combined with public transport.
Cars are inacessible.
Read Invisible women. Read the Vienna manual for Gender Mainstreaming. Read Making Mobilities Matter.