If I can fuck with it easily, sooner or later I'll get tempted into doing so.
I appreciate having a choice that lets me force myself to say "Nope, not on the iPhone. If I want to try out $shinyThing I can do it on the older Android device, or on a spare RaspberryPi or any of the spare laptop/pcs in the workshop."
There's nothing from Apple that forces you to buy an iPhone, you're allowed to buy an Android if you choose.
Interestingly, it's _much_ harder to customise a Tesla than, say, a Mustang. I wonder which side of the "but you're taking away my rights!" argument most of the people disagreeing here fall on whether to buy a Tesla or not? (For the record, I'd like to own a Tesla and I'd happily enough "use it Elon's way", but I also like owning ~20 year old motorcycles that I can tinker with to my heart's content...)