Why are positive relationships with adults important?

Positive relationships are important to maintain a sense of goodwill inside ourselves, a destructive relationship is not good as you spend your time fighting for what you want and feeling bad if you keep getting put down. And all sorts of other problems can occur like abuse and generally just losing your way in what is sane and normal, of course some people chose this way of life, but I wonder if they know just what they are doing to themselves and their spirit. I believe we need positive relationships, we all need to be supported and comforted and spend good times with other people and have fun.