Maybe due to the fact that for many in their mid 20s early 30s they have so much going on in life and expenses.
engagements, weddings, starting a family, first time house buying, having a decent car, pension pots, career progression.
For me at 28 everything is at play, the last thing you need is to see your $2.1xrp falling. Having spent what money you do have.
I didn't invest in bitcoin 5 years ago because I didn' understand it. This time with xrp I have a much better understanding and feel happy with my investment. However if I was 5 years younger I would probably be having a meltdown.
Life is about learning to dance in the rain, not waiting for the storm to pass.... I live like this on a daily basis so the "bloodbath" isn't an issue but for many it will be.