1. Manipulation of the Market !!
- Since the market changes every now and then and most of the banks they hold shares of the currency might be local and the currencies which are more accepted all over the world and they can change the price which depends on how much they are holding.
2. The banks have 0% Privacy
- They ask customers to do KYC and then link it to their other accounts openly
3. They might have 0% loans but only in big countries otherwise they don't even give student loans that easy , they keep on asking people to come and go and at the end people have to just take the costlier one. ( Student loan have 0% generally and normal ones go around 8-12%)
4. Some banks have literally exhausting rules like :
5% will be deducted from every transaction but they will give that 5% back in the future if the transaction is less than 2000$
So you keep using card , they keep accumulating 5% from people and use it for a month and then give back to the people wow.
At the same time their fee especially international fee is so ridiculously high that people have to calculate not just the amount but how much fee would be too you gotta add the : 5% + amount + fee by bank + fee for every withdrawal (which cannot be more than 500$) + fee for currency exchange + ...blah blah blah !!! Trust me it's a long list.
People blame banks for a reason ! They are too centralized and manipulate the market a lot.
4. Some even close the accounts for no reason at all, most of the banks now expect the customer to have a particular amount in their banks which is not possible for people who are less fortunate and then they attract them with 0% loans and when you are in you get to know that , that 0 % came with a 0%* which again have a lot of terms and conditions.
Banks you are talking about are the banks of the good and strong government where stimulus is provided on time and therefore I do think that you should study about this matter more..
People tend to missunderstood between the Central banks and Federal reserve.
And Commercial banks the really Bad Experience comes from Commercial banks but they are just the middlemen of the Central banks.
Commercial local banks are Different then Central banks!