I just don't get it

Its amazing how 2 people can be in the same situation and see it totally different. Its amazing how some people blame others for everything that goes wrong in their life. I just don't understand that. And then they pass these stories on to total strangers with their spin on it. I don't understand either how it is my responsibility to re apply sunscreen to my 2 year old grandson when his parents were busy apply theirs and could have taken the time to put some more on him. I also don't understand how I was taking handouts from family when I borrowed only 200 hundred dollars from D and sin and my sister basically supported me. I guess I should just let well enough alone and realize that just because people have the same parents doesn't make them both loving people.