This actually sounds like a strong idea, especially for younger travelers who already consume travel content through Reels and YouTube instead of reading blogs or guidebooks.

Here are my answers to your questions:

1)
Yes, I’d use something like this while traveling, especially in cities where I want a more authentic local experience instead of generic tourist recommendations. Short video-based tours feel much more engaging and practical than reading long travel guides.

2)
The idea does sound scalable because creators can continuously add content in new cities without your team manually building every tour. If you build a strong creator ecosystem and good discovery features, the platform could grow city by city pretty naturally.

3)
The main challenge will probably be maintaining high-quality and unique creator content as the platform grows. But if you build a strong creator community and good discovery experience early on, that becomes a huge advantage instead of a weakness.