The idea of ​​a social network of amateur athletes

There was a need for service, it was not possible to find something similar in Google. So the idea of ​​a social network appeared.
The network brings together amateur athletes as well as service professionals.
Key features (except standard): search for partners for sports, creating teams for game types, holding tournaments offline (very elaborate functionality for the full organization of tournaments: creating a tournament grid, game protocols confirmed by all participants, uploading photos and video games, discussions and more .d.), offers of services (coaches, refereeing, sparring partners, etc.).
Monetization. 1. Niche advertising. 2. Sale of sporting goods. 3. Bookmaking.

I have people able to create such a site. No money, and no strong desire to engage in such a project. Maybe someone will come in handy, and maybe someone will say that the idea is hopeless ...