Majority of people still think traditionally and would choose bank deposits over crypto. Banks are not going anywhere.
Sorry to disagree, if you believed that banks will be obsolete then its just like you saying that fiat currency will be surely replace by crypto which is very impossible to happen too. Granted fiat was superseded by the Crypto but still banks can easily shift from fiat to crypto banking system because they are already used to digital transactions. Banks survived many centuries of catastrophes in which they are proven survivors of many issues for years.