Let's practice hacking together a quick MVP. Again, an MVP is a quick and dirty way to validate if your idea provides any value at all.
Problem: Sean wants to build Uber for babysitting.
If you're Sean's cofounder, what would be your MVP to test if parents want Uber for babysitting?
My MVP
I would talk to some parents first to understand their pain points but let's say it's hard to find peer-reviewed baby sitters in your area.
Probably would find a parent that's chosen a new babysitter already
Ping the babysitter and ask for contacts of other parents she sat for
Ping those parents and ask them to review the babysitter
Ping the original parents and share those review
See if the reviews make them more comfortable with the babysitter