Another persons shoes, yes for perspective. thinking THEIR life is better? No, each person is given a certain amount, and it is up to each person to decide what they will do with it. Someone with more can do more, but if you can't manage what you have, then how can you even fathom having more?
I think that if you have the time to think about how much better someone else's life is, then you have enough time to make your own life better, you're just not applying yourself correctly.
Your life is what you make it. Make it what you want, not what anyone else wants.