I'm in the same demographic, same kinda of social group, and most of the people I know who use monzo still don't use it as the account where they store the bulk of their cash, it is more for travelling than anything else. The free (up to £200) withdrawals and inter-bank exchange rate make it a no-brainer for that, but there's still nothing about it which would make me switch away from a current account with a decent interest rate and added extras like insurance, or cashback on bills.