For expensive experiences, say, going to the theatre, it's hard to see shows you don't think you are going to like, as the price pressure makes you choose 'safe bets' as the cost/reward is somewhat weighted in one direction.
For something like music, the above used to be the case, as typically we find our tribe in our early teens, and money is tight so again, you buy what you know you are going to like.
I imagine though that streaming may change this, since you can dive into just about anything. We really need music search which follows more interesting routes through content rather than just 'people who like this also like' or 'here's another album by someone you already listen to'.
I'm lucky, my musical taste has always been broad, and if anything, it's got broader as i've got older. I do find myself reaching for older stuff that i've not heard for a while rather than new music, so when I catch myself doing this too much, the 'i've not heard something I don't like' alarm goes off, and I track down something that a session player I like has played on that i've never heard before, and try and find something new.