Crypto Are perfect way to provide escrow service for sellers buyers and other services.
I totally agree with you, that's why we launched Zenland (
https://zen.land/). We had exactly the same idea about escrow on smart contracts and you can already start using it. We are giving everyone 1$ upon registration to test Zenland. Our escrow smart contracts are working with any products or services (any exchange of value) but still feel free to checkout our use cases
https://learn.zen.land/kbtopic/use-cases/.
I believe there are already such services, one of them is smartlink, the other is zen.land, so, you might be a bit too late, or perhaps not. But the fact is the decentrzlied escrow already exists, they are just not as mainstream because, well, I don't know why but they should actually be, because they are the safest escrow alternatives
Thank you @Eternalman for recommending us.