I strongly disagree with your first point. Kids these days are more familiar with ChromeOS than Windows. Google has proven that as long as it has Chrome and a taskbar at the bottom people will be fine with it.
For long term support I also disagree with #2. The company I work for develops software that goes into both windows and Linux environments. The Windows environments are several orders of magnitude harder to secure and maintain because you never know what bullshit Microsoft is going to pull with their updates.
It may be easier to find a Windows IT person to maintain the system but it's going to be significantly more expensive and significantly less reliable than an immutable OS like Fedora silverblue.
For the nearly $1500 spec they tested you can basically get a Framework 16, with much better upgradability and a 2560x1600 165hz vrr display.