As much as I tend to agree with you, people who have loans, particularly mortgages, which are frequently traded amongst financial institutions, are locked in to a particular company like it or not.
But for retail banking, supposing you actually have the option, yes, absolutely.
> people who have loans, particularly mortgages, which are frequently traded amongst financial institutions, are locked in to a particular company like it or not
When we got the mortgage for our house, we went out of our way to arrange it with a bank with which we had (and have since had) no other dealings.
Result: Our "mortgage bank" has no insight into our day-to-day finances. Our "day-to-day bank" has no insight into our mortgage.
There are certain banks out there that don't sell your mortgage. The bank I have my mortgage through is one of those. Admittedly, they're kind of rare, but do exist.
But for retail banking, supposing you actually have the option, yes, absolutely.