Uplay market just like Steam Market

Hi there, First, I am new to forums and this is my first thread and maybe this idea already resolved or not,idk but here it goes:

I play rainbow six siege for over a year now. Here's an idea : when we recieve an alpha pack we can sell it to another player who is willing to buy( real money). Just like crates in pubg. And those money we recieve go into a uplay wallet, just like steam wallet where you can only use those money to buy new games, DLCs. I know that there are so much people will buy them, and also sell them. I mean it helped me in steam by just selling crates on pubg to buy cs go. As a "siege lover and a currently no job because im a student" I would love this way to buy rainbow year season passes, and pro league sets, weapon skins,etc. I am not saying this is only applicable with rainbow six alpha packs, its just that it is the only example I know 😂. And I'm waiting for other peoples' responses aswell. Waiting for this to happen! ❤️