Since many people now are interested and are investing in Bitcoin and other cryptocurrencies then maybe we will just take advantage of the price drop and probably invest also just like what these newbies are doing. You might regret it after 3-5 years but at least now we know Bitcoin has been increasing ever since it started just like the other altcoins too such as Ethereum. If I had enough money, then I would buy Bitcoin now though and hold them until my daughter graduates in college.
of course all will be able to do as you said "buy and hold bitcoin until my daughter graduates from college" of course it's obviously a very long time and can be sure there will be a very significant price change compared to when you first bought it. for such a long time it is clear that there will be very significant price changes.
but you shouldn't also do that because every 4 years there will be a Halving where bitcoin will increase and you can sell it and when the price is corrected you just buy again it will be faster the value will be received compared to silence for as long as possible. although that is a good thing too.
now it might be said is a crucial moment, if you believe that now is the lowest price then
you don't need to hesitate, because after all bitcoin will always increase because there is no benchmark at what price we have to buy, even now you buy and hold it can be ascertained one day the price will be more than when you bought it.