My mom hated Windows 8. That's an understatement; she despised it. Like so many others who had grown used to the Start menu and general interface of previous versions, Windows 8 came as a jarring change to my mom.
But a funny thing happened when Windows 10 came out; my mom was reluctant to upgrade. Despite hating Windows 8 and Windows 8.1, she had grown used to them and made them fit her workflow. Having to relearn yet another interface was extra work that my mom was slow to sign up for.