"Starship" would need one more than most (if I was a passenger and I found out they didn't have one, I would demand a refund on my ticket purchase).
Then again, that's all a long way off. Musk has a habit of being overly optimistic with his schedule predictions, and the first prototype looked...well...really bad. It will be a long time before they're ready to launch one of those things, and it'll be even longer before they're ready to take on passengers. That's a good thing, though - it'll give them time to get experience launching people aboard smaller craft and design and implement safety features for passengers.