A lot of businesses cheap out on bike racks and only put the low ones that are MAYBE bolted to the floor and only take one wheel, but I find those absolutely terrible to use in daily life. You have to crouch or hunch down to reach the rack for locking your bike, U-locks will not reach the frame at all, locking your bike through the wheel only is unsafe and often times you'll get your hands dirty on the wheel, and if they're packed full and put right against a wall it's nearly impossible to even get your bike locked or unlocked from them.

So if you wanna do bikers a favor, get racks that reach up to about waist height so you can do the locking standing up and away from the dirtiest parts of your bike, and can lock your frame and not just one wheel. There exist racks that have tall hoops on floor rails that you can then bolt to the floor so you don't have to pour every individual hoop in concrete.