I rooted phones simply to get rid of FB. It should be an app, and a well made app for any system - just not at the root level. FB is not a necessity. You can live without it.
I equate this to MS making everything depend on Internet Explorer. But others (especially banks) used programs that depended on IE.
Nothing except ads and marketing would depend on FB. Apple doesn't need it at root level to sell a phone.
I'm posting stuff like this just for a general consensus on "monkey see, monkey do"
If it's successful on Apple - will Google try to follow suit?
The general consensus on some sites (including financial) is that FB might just be on its way out like Myspace was. Is FB paying Apple to include it for marketing purposes?
Polls show American usage dropping.
I did read another article that said FB won't be entirely successful unless everyone is on it. Other articles say to get senior citizens on it. They are holding development back. AFAIK, this is America and online usage is someone's choice, not a law. If you don't want to connect, that's your privilege.