I'm surprised more people are siding on the 24mm rather than the 20mm
To much wide is like having to much telephoto, and you need to shoot where your standing (or). If you have a choice, you choose what works best for the shot. However, unless there is a compelling reason to shoot with a particular lens, I use what is on the camera most of the time. That may be why 50 is considered normal, it works more often than not.