I heard about crypto too early 2017, and I just didn't have the money to actually care about it till I was introduced to Steemit later that year.
I've actually invested a sizeable amount in different coins since then, and I really don't want to think about crypto ceasing to exist.
Even though it will be an epic disaster if it ceases, most people will eventually move on. Getting rich on crypto still required a level of creativity, we'll just have to channel the creativity to another source of income.