I figured that crypto can be perfect way to make it safe aswell and no third party distrubtion.
You mean escrow service? I think even not related with crypto you can do that kind of service. Having escrow on bitcoin or crypto arent common here but otuside the real application maybe they will get confuse unless they got idea of it already. Surely many will get away with it or avoid it due to unfamiliarity.
OP I am bit clueless of your idea but does it include you working on a product or purely escrow alone?