I'd think German traffic engineers could come up with a better solution, yet these are everywhere:
The bike paths themselves are desire paths for cars and motorcycles.
To block them off, they put up barriers, but those also block cargo bikes, wheelchairs and strollers, create a collision hazard, and force all cyclists to stop and dismount for no reason.
Of course, they'll be bypassed wherever possible – naturally by cars and motorcycles too, if there's enough room.
Side on view of said pictures ?
They get used in parks here with plenty of room from the front and back post as they are staggered. But here they’re used to stop kids on motorbikes, quads and skidoos.
Yes, they're staggered. You can walk your bike through, but not safely keep riding.
And they're close enough (<1m) to make it really difficult with a wheelchair, cargo bike, loaded panniers or modern MTBs with their broomstick handlebars.
The people who plan this bullshit grew up in a time whether there were only granny bikes. Actually, sometimes I think all traffic planning in Germany is being done by drunk chimpanzees.
The point is to not have people riding onto the road.
So it's okay if that means disabled people can't use the park?
I'm aware.
It's to force cyclists to dismount (which by the way isn't possible for all vehicles allowed on that path), instead of forcing cars to stop by changing the right of way.