Does God care who you hang out with?
Absolutely! Even as Christians we can be influenced by sinful behavior that we see in people we are friends with. When we hang out with good Christians, and we will be encouraged to be better Christians. If we hang out with people that love to do wrong, then our faith suffers.
He who walks with the wise grows wise, but a companion of fools suffers harm.
Do not make friends with a hot-tempered man, do not associate with one easily angered, or you may learn his ways and get yourself ensnared.