Home users don’t necessarily need an OS to be “in support”, especially if they are satisfied with their present apps and browser. The last big breakthrough was mainstream 64 bit OS (I don’t count the poorly supported Windows XP 64 bit)
It would be nice if people did upgrade and continue to get security updates... There’s millions of botnet computers out there and just about all of them are people still on Windows XP. The same thing will happen with 7.