There are pros and cons to both putting all your money in one bank and having multiple banks. Pros of this include that you can easily get help if something goes wrong, and that you're more likely to be able to get your money back if something does go wrong with one of your banks. Cons of this include that it can be hard to keep track of where all your money is, and that it may not be the best choice if you have a lot of money in different accounts.