I do not see the example link of user paying with Solana USDC?

In your links I did not see useful case studio OUTSIDE crypto space.

Your links show tons of crypto to crypto use cases. (currently emphasing being on various nft related services, like that phantom.app -> A beautiful home for all your NFTs).

I sell virtual products/services which are not related to crypto. I want to offer an ability for someone without any cryptocurrency to purchase these virtual goods from me.

So the chain could be https://www.moonpay.com/buy -> users uses some wallet -> payment widget on my site.(like old bitpay)

There have to be examples of a regular ecommerce shop having this functionality.

Again, I want Joe Sixpack with a CC but no crypto to come onto my site and pay with cryptocurrency in a user friendly manner.