It is nice if friends or family are there for you, and for important things they will be.
Warcraft is just a game... if your car breaks down at 2am on an isolated road, they'll pick you up.

As far as gaming goes, the only person you can rely on is yourself.
If you want boosting, use an existing toon you already have.
If you're on a new server without a higher toon to provide your own boosting, then anything others do is a very nice extra, but don't count on anything.