Why do banks pay interest on savings?

Answer: They use your money to make loans

They use your money to make loans ✓ — Correct! Banks are intermediaries in the money market. They pay you perhaps 1% interest on savings, then loan your money to others at 5-7% interest (for mortgages, car loans, business loans). The difference (spread) is the bank's profit. Everyone benefits: you earn passive income, borrowers get needed funds, and banks profit from the spread between borrowing and lending rates.

Your money grows like plants — Wrong. Money doesn't grow on its own—it only grows when it's put to productive use. The interest you earn represents a share of the value created when your money is loaned to buy homes, start businesses, or finance other economic activity. Money sitting in a vault creates no value and earns no return.

Banks feel grateful for deposits — Wrong. Banks are profit-seeking businesses. They pay interest because it's necessary to attract deposits, which they can then profitably lend out at higher rates. If they could attract deposits without paying interest, they would. The rate they pay is determined by competition and central bank policy, not gratitude or generosity.