I Would say buying Bitcoin needs to be considered a long term investment in not just the BTC you buy but in the quality of life you would like to have.

BTC is just over 10 years 9 months old as I tend to see the January 3rd date being BTC's Birthday.
BTC and the Cryptocurrency Ecosystem is currency 2.0 and Assets 2.0 compared to "Cash" and "Stocks"
There are many stinker ALTS still but that's part of the Laboratory of altcoins to test out new ideas and new theories.
The next 9 - 39 years for crypto are going to ever more revolutionary for crypto than the 1st 10 years have been in my opinion.
We'll have mass adoption in that time though many people won't be realizing they are using crypto.