Cancerians make very good friends. They sure as hell don’t make a lot of friends – most potential candidates are fended of because of a faux pas they commit at some point. But the few chosen ones form a part of the inner circle and make for a very firm and deeply meaningful friendship.
If you are a young Cancerian, you would be very willing to take your friends home and introduce them to your family, and if you are a parent, then you might want your children to bring their friends home and familiarize them to the family. This shows a strong family circle and also the fact that Cancerians do not quite differentiate friends from family. This is because they do not rush into friendships. They take some time with the other person, see if you make a good rapport with him/her, and only then allow him/her into their circle. This comes naturally to them.
The risky part here is that if the friend here is a little younger than the Cancerian, that the latter may start to behave like a parent – he/she might start acting in a very protective fashion, and treating him/her as a child. Since the friend is just a little younger than you and a friend, by definition, he/she will resent it. But the Cancerian can’t help it – it comes naturally to you.
You can’t just sit down and see a younger friend make the same mistakes that you did a few years ago and suffer in the same fashion. He/she will just have to curb his/her natural tendencies.
However, Cancerians have the ability and the habit of turning a close group of friends into a kind of family. They are also very good at patching things up with their friends, or even between two friends. People will love them for that and remember them for ever.