I'm going to lay it out flat with you: Family relations are shit. There are tons of toes that should not be stepped on, there are "we're family" reasonings that might as well be under-the-table dealings you need to keep track of, if inheritances are on the line then who knows who has a knife ready to stab you in the back.

Friends and neighbours by contrast are platonic, they are relatively simpler relationships. In fact, because they are so simple, there is much more value in trust and honesty because anyone who is dishonorable will instantly lose that relationship. Family relations aren't like that because most relationships can't be easily deleted.

As the saying goes, keep your friends close and your enemies closer. Your closest relationships are your family.