How unbelievably user hostile. This is a command line tool. There are no users doing this who are not fully cognisant of the existence of Catalina. You're just

How unbelievably user hostile. This is a command line tool. There are no users doing this who are not fully cognisant of the existence of Catalina. You're just making the OS less useful for no reason, save for Apple's own embarrassment at shipping such a poor update. Perhaps if Apple wanted to improve takeup of OS updates it could try making them better so people wanted to use them, and they weren't net functionality decreases (I have an older non-retina iMac for example. Installing Catalina would result in Airdrop no longer working to other devices that I use on a regular basis, break 32 bit apps, and break font rendering, for zero functionality improvements I care about. WTF would I possibly do it?).