Probably because he thinks it will make him money.
I'm looking into this myself - I could probably afford a suborbital flight in a few years based on predicted prices. I probably won't be able to afford to go orbital (well, not without spending more money than I should). And if I can into space for even a few minutes, I will pay for it.
If you can get 1000 people to pay $100,000 for a suborbital flight, you'll make more money than 10 who pay a million to go orbital. There's going to be a market for both types of space tourism.
Go for it! Do they require Covid vaccination?