I know some set of people who created a wallet and started accumulating Bitcoin when they later discovered they need to hold for long period of time they became disappointed and stopped.
If they created their non custodial wallets for Bitcoin accumulation and storage, it's good enough.
Because they already did good first importance practice, be their own banks and did not store their bitcoin on online platforms where they never have private keys of their bitcoins.
Reminder: do not keep your money in online accountsYour example means they began their bitcoin accumulation around Euphoria phase and stucked in a bear market, because if they enter the market luckily enough, they can get profit and take it during a bull market.
Psychology of market cycle. Newbies in this market will have to read this one and absorb it as most as they can because it is vital for their investment.
[img width=600]https://fifthperson.com/wp-content/uploads/2016/01/Psychology-of-Market-Cycles.jpg