Music should be varied and shouldn’t just stick to one genre or decade. It should have different styles to suit the mood and atmosphere you are in.
My music collection seems to be getting more eclectic as I get older due to discovering great albums and acts. Most recently I bought Tom Jones’ Greatest Hits. I have always been a fan since I was a kid but have recently re-discovered my love for his music. I have just turned 19 by the way while telling my friends of my recent purchase they raised their eyebrows as though they are used to me buying music that is usually associated with an older social demographic.