"Why do people do things that be bad for them" which song is it? Sober. By G-Eazy featuring Charlie Puth.
Why do we do things that are bad for us?
To answer that question you have to ask yourself why people do things at all. People only do things that are good for them. So how is it possible that we do bad things? Well these things may only be good in that moment.
Take going to a club as an example. In that moment you will have the greatest fun but tomorrow morning you will be hung over af. That's the bad thing.
If we say that we only think about the future we won't be happy either. Because if we can't let go from time to time where will we end? In our society, our lifes we are always directly confronted with the consequences of a certain action. Sometimes we have to stop worrying about the future and let it be in the future.
If you tell a fifteen year old he or she needs to know now what that person will do as a job. That person won't be able to answer. But our society forces us to and to loose ourselves in the future and forget to enjoy ourselves for a minute.