Wallets with coin purses or pockets are so helpful in many ways. It adds functionality to the wallet itself. It provides more storage for stuff like change, coins, a pair of earphones and more smaller stuff that it can accommodate. You won't have to put every cent or penny you have in your pocket because that is what a coin purse in a wallet does! In addition, it comes in different closures- it can be sealed with a zipper or a magnetic buckle!