See... and I'm on the opposite end of the spectrum here. I love that this has a high enough barrier of entry that I can easily set it up and take advantage of it while never having to worry about any one of my friends or family that aren't tech-savvy "accidentally" or even "unintentionally" setting this up and getting adware, malware, scams, etc. set up on their phones. For me, it's never been enough to just have an option in the settings because I've been around long enough to know that scammers will just start including instructions for how to bypass those things and access developer modes and unwilling and uninformed users will follow those as long as the instructions look trustworthy enough.

I'm all for installing whatever software you want on the hardware you paid for but there is definitely a balance that needs to be struck for the majority of users and I can tell you that the majority of users aren't informed enough to know the drawbacks of an alternate App Store.

Source: I was an early jailbreaker and remember when, as soon as the jailbreak became an app that you just installed and ran with the phone hooked up to a computer, my business exponentially increased. People would jailbreak phones for their friends and families without explaining anything and then I'd have to service their devices to un-brick them and get them back to stock.