You only need to hang around toddlers or teens for less than a day to realize people do not start off kind.
People start off egocentric. Unaware or unable to take in to account the people around them are individuals with conflicting wants to you. Also unaware that we are egocentric BUT with social instinct built in to us: if we are surrounded by miserable people, or people angry at us, we don't feel good either.
So we learn that kindness, while sometimes initially painful or less opportunistic, in the long term leads to satisfaction.
You only need to hang around toddlers or teens for less than a day to realize people do not start off kind.
People start off egocentric. Unaware or unable to take in to account the people around them are individuals with conflicting wants to you. Also unaware that we are egocentric BUT with social instinct built in to us: if we are surrounded by miserable people, or people angry at us, we don't feel good either.
So we learn that kindness, while sometimes initially painful or less opportunistic, in the long term leads to satisfaction.