The “mom and dad” folk might enjoy it, but won’t know how to install or update things, simply because it’s different.
This is rapidly becoming irrelevant as the PC crowd is being reduced to professionals and hobbyists, who don’t have a problem learning things. The less computer-literate users stick to phones nowadays and they’re mostly content consumers on that platform so all they contribute is body count. They wouldn’t bring any contribution to Linux even if they tried to use it.
I don’t think Linux will ever be in the majority
But it is being dominant on every platform where it makes sense and/or there hasn’t been a concerted effort to keep it out. The PC is basically the only major holdout thanks to Microsoft and even them have adopted it to some extent.