Isn't a painted bike lane enough?

Sometimes yes. But oftentimes, it’s not safe enough.

Resources

Why I don’t use cycle lanes - YouTube

https://www.youtube.com/watch?v=VvlAauT4o08

At 1:17, cars are blocking the cycling lane.

Cycling in Kuala Lumpur’s bicycle lanes during rush hour - YouTube

https://www.youtube.com/watch?v=TMWUj49PQIw

At 0:31, cars are blocking the cycling lane.

At 1:39, cars are merging into the cycling lane making it very dangerous.

Bike Lanes by Casey Neistat - YouTube - CaseyNeistat

https://www.youtube.com/watch?v=bzE-IMaegzQ

• https://www.reddit.com/r/fuckcars/comments/rxc0v4/another_way_cars_make_biking_inconvenient_in_the/

He got fined for not staying in the bike lane even if they’re cars are blocking them. So he made this video and purposely run into them.