I worked as an IT Pro for over 15 years, and ever since the release of OSX, I've been recommending people switch to a Mac, especially family. The only people who call me with computer problems now are those with Windows machines.
Don't forget correlation/causality. If someone recently switched to a mac then their computer is newer, less dusty, guaranteed a few more security updates compared to their old one, regardless of OS.
Did you troubleshoot their computer problems when all the GUI moved from where they expected it? Little things like ⌘-C instead of ^C to copy? When they had no OOTB write compatibility to their old NTFS volumes? First google result for that is to enter random terminal commands as sudo, what a great habit to get into.
I worked as an IT Pro for over 15 years, and ever since the release of OSX, I've been recommending people switch to a Mac, especially family. The only people who call me with computer problems now are those with Windows machines.