The internet allows us to see a life of choices different than our own.
"Just because you made a different choice doesn't mean that I made the wrong one." - Me
"I'm OK, she's OK... there are many ways to be a good mother." - MotherStyles
Vi Hart's Guide to Comments - "Maybe you care because you haven't decided yet who you are and who you want to please... I am not afraid."
"Write what you like and the rest will follow." - Me
"The best way to get approval is not to need it. (Key 28)" Hugh MacLeod
All of this touches on the consumerism debate which I won't get into except to mention some great guidelines - People Planet Product
"Happiness is, after all, a consumption ethic." - Slouching Towards Bethlehem by Joan Didion
(No affiliate links, I just like to show you what I'm talking about.)