Advantages:
-development of personality
-better condition of women
-individual responsibilities
-problem free unit
Disadvantages:
-economic disadvantage
-insecurity of children
-agency to develop bad qualities of inmates
-loneliness
It is known as Idealism.
In philosophy, idealism is aimed to assert the fundamental reality that humans commonly face as we know it.
This type of view tend to not really popular because the majority of us often prefer to hear comforting lies rather than have to face the cruel reality that exist in our society/environment.
Mitochondrion would be your answer for this:)
You can identify an animal or a friend or family member by just hearing their voice.