Private key recovery

Hi there! My team working on a key recovery service called Longplay.
Longplay is the decentralized private keys recovery service.
The unique thing is that Longplay doesn’t require a user to store any password or encryption key to recover the data.
Longplay is the white-label solution for wallets, exchanges, Dapps and blockchain-platforms to provide recovery option to their users, becoming more competitive.
We are interested in the opinion of the community regarding the extent of the problem of losing private keys and the existing methods of their storage and recovery.