To me, human connections are fostered through emotions, not through blood relations. Whether it is mother, father, brother, sister, wife, or child,.. any relationship is weak unless it has an emotional quotient. Mother-baby relationship is the only relationship which is connected through blood and emotions from the beginning and it happends godly without any effort.
I conciously surround myself with people who are emotionally connected to me. Never did I bother of naming a relation for the sake of convincing the society. They were there for me and I will be there for them.