He's not the guy behind the startup in the OP, he's just a guy doing homeschooling sharing his own personal experience. He's saying that at one point they went to Paris, which is a very educational think to do. That's homeschooling. Then they also studied Viking stuff. Maybe it was even in Norway at Viking sites? That sort of thing. A reasonable response to what do you do that Khan Academy doesn't which was the question asked of him.
You don't know if your own kids went with you to Paris or not?
I call shenanigans. You're a duplicate account or otherwise working for OP's company.
Sheesh. This situation with YC funded companies getting dog and pony show coverage here with a bevy of fake accounts and special algorithmic preference is never going to stop. YC's so full of crap it's amazing. Bogus.
"Travel to Paris"
"Viking Art and History"
"Waldorf Form drawing"
"The History of Halloween"
They also get to see the instructor and interact with them and other kids.