Non-power users operate entirely in browser these days. You can switch them over to arch and they wouldn't be able to tell the difference. The problem is switchover of the OS is a complicated, techie thing to do. Try convincing someone to switch to Win 10/12/whatever isn't current one and requires more than ticking "yes I agree to automagical update on next reboot". It's not an aversion to Linux, it's laziness.

What we need is Linux laptops being sold in supermarkets. 99% of people won't even notice they aren't running Windows anymore.