You really can't compare a Chromebook with an iPad. On a Chromebook that I bought and that I fully own I can enable the Linux system and install whatever I want on it (it runs in a VM and it is a full Linux system). The iPad is artificially crippled for programming by Apple.
Your personally owned Chromebook isn’t comparable to a school issued Chromebook at all. They’re more locked down and useless than a stock iPad. Kids cannot install Linux on them.
> On a Chromebook that I bought and that I fully own I can enable the Linux system and install whatever I want on it (it runs in a VM and it is a full Linux system).
Do you really own it ? Can you install linux or BSD _instead_ of ChromeOS ?
School IT departments are unlikely to allow this. Even if they don't have technical restrictions, they'll have policies that prohibit it (at least my kids' school district would).
School-issued devices are generally intended to be similar to devices a corporation would provision for non-technical workers.