"These average people who are content with the default" are going to be your customers. My grandpa has an iPhone and his friend uses uber all the time. Both are very conservative and might fall into that realm of 'average people' yet use disruptive game changing ideas.
Get out there and empathize with real people with real problems. You'll find that even the most boring, ho-hum, run of the mill person will be happy to lay down hard cash for your game changing idea if it fixes THEIR problem.
That being said, focus groups are a horrible way to get meaningful feedback. Customer interviews and other more in depth ethnographic techniques are going to deliver what you're looking for.
Get out there and empathize with real people with real problems. You'll find that even the most boring, ho-hum, run of the mill person will be happy to lay down hard cash for your game changing idea if it fixes THEIR problem.
That being said, focus groups are a horrible way to get meaningful feedback. Customer interviews and other more in depth ethnographic techniques are going to deliver what you're looking for.