Why must your first business idea be some sexy grandiose social network that requires perhaps millions of users to reach the critical mass required for it to ge

Why must your first business idea be some sexy grandiose social network that requires perhaps millions of users to reach the critical mass required for it to generate one iota of value? When did you wake up and say "oh I NEED a social network just for media?". Find something people NEED that doesn't require all this ancillary bullshit to be useful and sell it. Then when you can finally put the money problem aside you can dive into your big social network idea, if you even care to at that point.