Seems pointless and inconvenient for me as they usually seem to be poor quality, and can you really listen to music in the shower, and are you showering long enough to benefit from it?
Or do you own one and use for a different purpose, like swimming or Kayaking?
It definitely came as a shock to me. I’ve had really short hair for the last 20 years and decided to grow it out last year for funsies. It’s at my shoulders now and I didn’t notice the time creeping up as it grew, but I can see it on the clock now!