Whoever spends recklessly finds it very difficult to save some money or even invest.
People find themselves spending more than they even earn just to measure up with certain people in the society or to impress others.
There is a popular saying; cut your coat according to your size.
You don't buy a car because your friend bought one, or because your peers all have a car. I think we should learn to spend when we actually need to, that is why there is table of preference, we acquire things that are more important/useful to us at the moment, not just because we want to buy them.