How is it that the Netherlands has the lowest unemployment among the young?

Is a human life meaningless if there is no afterlife and death is the end? Would you tell a child building a sand castle on a beach that there is no point in doing that, because the castle won't be there tomorrow?
I’m 21 going to be 22, but I’ve always been dreaming of marrying the love of my life and building a wholesome relationship with my partner someday. Is it too early/soon for me to write my wedding vows?