I remember when that happened to me way back when.

These days, almost every computer user I know falls into one of three categories:

• Already has the proclivities that would lead to active interest in Linux
• Just uses their computer for web browsing and email and so would barely notice if their system switched to Linux
• Is a gamer

If the last, they either play a VERY few games that don’t run on Linux; are convinced, incorrectly, that you can’t game on Linux; or just don’t care.

edit: There are certainly exceptions, both within and outside of my social circle; however, they’re definitely on the outskirts.