We should have the ability to run any code we want on hardware we own

I want my less tech savvy family members to be able to buy locked-to-the-company-store hardware, that they can’t run other things on, as it protects them from one avenue of scams and hacks. This protection can and will be worked around if it can be easily disabled.

Fully open phone systems consistently fail to sell enough to make a difference, which is a bit of a shame, but honestly at this point the market has spoken.

You provided an alterative solution yourself. Make protection harder to disable, so non-tech savvy users can't disable it easily, always inform them of the consequences of disabling it and make it that it's only needed in exceptional cases (there a lot of room for improvement here).

If they want to climb over the protection fence, they should be able to do it as they clearly WANT to do it. Why should you have control what they can or cannot do? (Unless they are your kids.) Should experts in other fields also be able to control over what their layman family members are allowed to do?

> always inform them of the consequences

This would be about as useful as telling the cat why he can’t go out right now. The words would not be understood, as they won’t be by probably 90% of humanity.

> If they want to…

They don’t. Categorically. The only reason they would try is because they are being scammed with offers of getting something or cajolement entreating them to allow it.

> Why should you have control what they can or cannot do?

Me? I’m not asking for control. I’m saying that most people aren’t equipped to understand the threats they face, even in the face of explanation or warning, and their use-cases are comprehensively covered without it. My parents are old. My brother ends up with any PC he owns full of malware and viruses. The current status quo serves them and many millions of other people very well, and we need to be very cautious when arguing to rip this away in the name of our freedom - to them it only represents freedom to be exploited.

> Should experts in other fields also be able to control over what their layman family member…

Experts in other fields determine the extent of what all laypeople may do legally all the time. Or do you live somewhere that there are zero restrictions on (for example) gas plumbing or work on electrical systems?

I remember that in order to unlock the bootloader of my trusty old Xiaomi Mi 5 (I still use it to this day as a test device for development) I had to go to some website, say that I'm happy with unlocking it, agreeing to the terms and stuff and at the end be willing to wipe my device clean and have an "unlocked" written under my boot animation. I think these would stop your average joe, but now I've heared Xiaomi has blocked unlocking your bootloader in its entirety which is a shame, they used to allow root access from inside a stock app.