It seems really weird not to as ask the question "why would someone use your engine over Google," as a friend because "Why would I use your search engine over G

It seems really weird not to as ask the question "why would someone use your engine over Google," as a friend because "Why would I use your search engine over Google?" is exactly what every single customer is going to ask, prospective employees and founders aside. If that's not something they have a cogent answer for, they should probably look into some other line of business.