If you really get serious about investing, you will get addicted.
You get hooked when you learn how it multiplies your money.
You join the cult and drink the Koolaid when you see what happens when you start adding zeros.
Common tokens in our society:
gift certificates
concert tickets
arcade tokens
casino chips
train / plane tickets
cash
stock certificates
college degrees
club memberships
cryptocurrency
Legitimacy is the common thread, but who decides the legitimacy? Also, who decides the value?