A wallet does not literally hold bitcoin
A bitcoin wallet does not store bitcoin the way a physical wallet stores cash.
Instead, it stores or manages the private keys that let you control your bitcoin on the network.
Why wallets matter
Wallets are the bridge between you and the bitcoin network. They let you receive, store, and send bitcoin.
Different wallets make different tradeoffs between convenience, security, and control.
Types of wallets
Some wallets are hot wallets connected to the internet. Others are cold wallets designed to keep keys offline.
Understanding that difference is one of the most important steps in learning bitcoin safely.
Bottom line
A bitcoin wallet is really a key management tool. Once you understand that, a lot of bitcoin starts to make more sense.