Maybe the ecosystem just isn't big enough yet. Too much of the market is still not yet using Apple's products.
Maybe when Apple reaches Microsoft-level penetration, and of course that is their goal (Exhbit A: Apple pricing trends), you might get your druthers.
It really should not be necessary to "jailbreak" a device in the first instance. The user should be able to easily install their own choice of software on the hardware they have paid for: e.g., applications, OS, bootloader and BIOS. If you want to install Apple's software, you can. If you do not want to install their software, you can install something else. Simple.
Maybe when Apple reaches Microsoft-level penetration, and of course that is their goal (Exhbit A: Apple pricing trends), you might get your druthers.
It really should not be necessary to "jailbreak" a device in the first instance. The user should be able to easily install their own choice of software on the hardware they have paid for: e.g., applications, OS, bootloader and BIOS. If you want to install Apple's software, you can. If you do not want to install their software, you can install something else. Simple.