Things happening or happened in London:
- Massive and sustained increase in cycle routes (also applicable to ebikes, scooters, etc.), especially fully segregated from traffic and pedestrians, and including redesigning some major junctions and transport hubs
- Actual changes in law to allow e-scooters (initially via hire schemes) as well as police generally turning a blind eye to technically illegal personal e-scooters/and electric skateboards
- Conversion of parking spaces to cycle racks, resident's cycle storage huts, and ebike/scooter drop-off points
- City run cycle hire services and docking infrastructure as well as widespread app based services
- Closing many residential streets to through traffic, allowing only local traffic (almost none) and pedestrians, cycles, scooters, skateboards (seriously, this is amazing, streets are super quiet and I can get around my local area by bike or electric scooter/skateboard quickly and incredibly safely)
- Requiring cycle parking and storage in new residential and office developments
- Increasing of congestions/pollution charging
And when I travel around Europe, though I don't know as many of the specifics, it feels likely many cities are at least as advanced as London, quite likely moreso in many cases. The US… not so much.