But they're heading to a boring podsnap life. I think after all, a life full of troubles is a lot more fun at the end of the day/life.
You know, like falling backwards into the coffin, closing your eyes while thinking "DAMMIT, what a ride...!!!"
when you re insecure you are deeply and constantly unhappy, so you do not "enjoy" life considering you re depressed and always in the need to fulfill the original emptiness. Whatever you do you can only feel good for a short moment, when secure people are CONSTANTLY happy, even if this kind of hapiness sounds boring to others. You pick your choice. Insecure people learn insecurity very young, in the first months, years of life and it is definitely embeded in their brain. Their "level of hapiness" is definitely engraved. Look at artur janov's work on google about primal therapy.
Also caring about yourself only and ignore others is a pure construction of our modern societies and the problem is when you get old and nobody cares about you cause you didnt care about anyone.