you are comparing bitcoin rate to bank interest......
do you even do math
2011-2013 (high to high) $30-$1200 =4000% / 2 years =2000% a year
2013-2017 (high to high) $1.2k-$20k =1600% / 4 years = 400% a year
2017-2021 (high to high) $20k-$70k =350% / 48month = 87% a year
and you want to compare it to bank interest of 5% PER YEAR
i have a lump of cash, but i dont think much for the bank interest.. yea its free money but when bitcoin dips to a nice price nearer to value, i prefer to put money in bitcoin on the low and take out on the rise (even though i have coin hoarded. i still like to take opportunities when the price is drop is right)
i have spare play money amounts of coins i enjoy selling on a high
i have spare play money amounts of fiat i enjoy buying on a low
i have hoards of coin i dont touch for longer periods
i have fiat holdings i dont touch for longer periods
as for advice for people on low incomes wanting to invest
if you are single (no spouse, no kids) so no dependants relying on your income. i would still not advice becoming a caveman living in squalor, just to invest everything.. but you would obviously have less dependants so have more excess/disposable income to invest without negatively affecting your life
yes be frugal, by replacing some luxury brands with cheaper brands. but dont suffer, be more conscious of your spending. EG dont buy brand new cars to impress people. just buy a car that can get you from a-b.
ask yourself will you really enjoy fast food delivery that just turns into a bowel movement tomorrow. or can you make something at home better and cheaper
and yes keep enough bank balance to cover any emergency such as any home appliances that stop functioning or covering bills for a few months if suddenly unemployed, but dont cash out investments or save up enough cash just to hope you can get nice bank interest..
I mean people who like a caveman with 5k and a job that barely pays their living expenses but just keeping their btc and not selling any. That type of person is rare right?
if they have been accumulating for many years. i see no sense in the binary(2 option) mindset of always hoard or always cash out.. personally i play the middle, of hoarding majority and cash out some to cover enjoyable life..
i do see many people that do the extremes of the 2 options.
some cash it all out and waste it on lavish lifestyle.. and their money is gone
some hoard and caveman live never cashing out even at a ATH
but smart people dont do the extremes
however those that do hoard for plans of retirement when they get old. are no different then those who invest in pension plans.. but you shoud not suffer and live like a caveman while waiting to get old