Uncertain on my start-up idea. Please can you challenge it.

Hey Team, I’ve found my confidence wavering recently on my business idea. It’s likely because I’ve been thinking about it too long and now need to execute but would love some reassurance / to be challenged so I can validate it in my own head. I want the product of the business to be premium pop-up events, short term experiences in high-demand prime locations. An example and my first endeavour: Pop-up Padel courts across London. The courts would be erected for a month, operating 12-hrs a day. Booking slots would be £50/h - paddles and balls included. Additional revenue sources may include advertising partners, collaborations perhaps with local cafes or bars. Other pop-up examples could include: bars, exclusive cover restaurants, yoga, outdoor cinemas, etc. The business could then develop to service brands looking to execute their own pop-ups. Thanks for reading - really appreciate any advice!