Earlier quoted context omitted.
These[0] used to be rather common in the Netherlands And are actually pretty much fine on the wheel bending front if there's enough bicycles parked . You'll just stick your bicycle at the end of a group of bicycles and it'll be prevented from falling over by its neighbors. Still sometimes seen in lowish traffic areas where theft is not very likely. These days you'll more often see these[1] which are a bunch more dens…
Fun fact, in Netherlands (Rotterdam at least) these things are called “fietsnietjes” which translated is something like: bicycle staples. In Rotterdam you now also have a “fietsvlonder” where a car parking space is sacrificed to provide bike parking: https://images1.persgroep.net/rcs/O97W6vbddSiXPyu6kiJecLftNS...
And I like the wording that the "parking space is sacrificed" as it implies the religious importance of cars for many of their drivers :)