Banks have cameras before they regularly deposit their passbooks. Why not now?

There was a camera before the bank regularly deposited the passbook, and now there is no deposit. The deposit that the Agricultural Bank needs to take photos is generally more than 50,000 yuan in cash at the counter, or more than 6,543,800 yuan without a card at the counter, and the deposit is handled on behalf of others. If not, there may be no need to take pictures.