Ask HN: Are payments and escrow features required?

Hi All,

I have an idea for a platform for buyers and sellers and planning to build it next weekend but the problem is i have no intention to handle payment, escrow and customer support since i find it to be a waste of time to spend on those before knowing idea addresses the a world problem or not.

How would buyers & sellers feel if i ask then to handle payments & escrow as they wish?.

Would it work? any startup examples?

Thanks