Here are the 15, 30, and 50 year amortization tables for a $500k 6.5% loan. If you take the 50 year loan at age 30, by the time you turn 50, you will still owe $447,235 after paying 632,749 in usury. This is literal indentured servitude. Oh, & they own the house until you're done

And any time you refinance into a lower rate but at the same term, you are resetting this curve back to zero. Unless you're in a position to make significant extra payments during the early years, you will effectively never own anything.

In this 50 year loan scenario, the bank has been repaid every single dollar it lent you part way through year sixteen. Anyone talking about "inflation risk for the lender" is entirely too stupid to vote, let alone sign a loan document.