You shouldn't hate people just because of their age.
John a recent grad is having trouble finding jobs, and the ones he applies for tells him he has too little experience.
John wants to work and move out of his parents house.
John realizes that while he is frustrated at his own circumstances, hating a particular group wont change things.
John hates old people because they wont retire so young people can get the jobs and experience they need to start their careers.
John stops blaming old people for his unemployment and works on his resume to make it better.
John starts making fun of all the old people he meets, yelling at them to retire and get out of the way.