Re: Been there with my own Dad.
I tried this route with my Mother. Cheapo Windows laptop and I though all would be well.
After countless support calls (and 200mile round trips) I hoisted the white flag and gave her my 2009 13in Mac Book. Malware and trojans seemed to get onto the macnie despite all the precaurtions I put in place. No she wasn't browsing Pron sites, she is 92 for heavens sake.
Not had a problem call ever since. So what if the original price of the Macbook was more than the Windows Laptop. I really don't care. Mum is happy and that make me happy. That is priceless.
The cheapo laptop now runs Centos and my DNS setup.