Not really sure how this is much different from any consultant who does long projects on the road, at least as far as social isolation is concerned, really. You go to work, you do a job, and then you go back to the hotel. What I suspect is happening on top of everything else for these players is that (a) they're in a competitive field so they have to stay on top of their rest and diet at all times, (b) isolation is definitely a thing, but (c) many of them come from upper middle class backgrounds and it's a culture shock to bleed through money just to travel for tournaments and have proper gear.