We want to be together

I saw an advert for some Christian tshirts the other day and one of the slogans related to only needing God. This perspective is something that I grew up with - don't worry about what your mates say about being a Christian - God is your strength and refuge and he is all you need. I have been thinking about where this thinking comes from, and wondering whether it is a bit of cop out. Is this focus more to do with the individualistic nature of our society than what God intends for us. I increasingly think that it is harder and more authentic to not just 'rely on God' but also accept that the Christian life requires us to rely and trust each other as well. Just a thought - I may add to this later...