Wex (formerly BTC-e) is like a secret wallet where digital money (like Bitcoin) is kept safe. But it's different from your piggy bank at home because other people can use it to buy and sell these digital coins.
Think of it like a big playground where lots of kids bring their toys to trade with each other. Some kids might bring marbles, others might bring toy cars or dolls. In the same way, people from all over the world bring different digital coins to Wex to trade with each other.
But just like in a playground, there's someone who needs to make sure everyone plays nicely and follows the rules. This is where the "boss" of Wex comes in. They make sure no one cheats or steals from others on the playground.
So, if you want to buy or sell Bitcoin or other digital coins, you can go to Wex, just like going to a playground to trade toys. And the boss at Wex makes sure everything goes smoothly and everyone plays nicely with each other.