How are banks able to attract small savers if small savers can usually receive a higher interest

Question:

How are banks able to attract small savers if small savers can usually receive a higher interest rate from money market mutual funds than from bank savings accounts?

Mutual Funds
Mutual funds are like a pool of funds gathered by different small investors that have simalar investment perspective about returns on their investments. These funds are managed by professional investment managers who act smartly on behalf of the...