People here really need to remember that the vast majority of computer users don't really know or care care whether they're running Microsoft Windows or Microsoft XBox 360 as long as it does what they want.
Your right. I've installed Linuxmint on many family and friends computers over the last few years because I convinced them it would do what they want. Browse the web. Listen to music. View photos. Send email.
Part of the deal was a higher level of (free!) support from me with the Linux install. Windows installs only come with save documents and reinstall support (still free !).
Often I've setup dual boots for the unconvinced or gamers but encouraged them to give Linux a good go. In almost all cases Linux has become the preferred OS and I been asked to delete the windows partition to free up drive space. Apart from games most windows software works under wine, games are far more hardware dependant for success.
I've been using Linux personally since about 1996-97 (I remember that kde was first released soon after my first install) and it used to require some effort. Now it just works most off the time.
SSH only accepts logins from me.
You hope
We are drowning in information but starved for knowledge. -- John Naisbitt, Megatrends