[linvin]

Leave aside first billion people. The next 2-3 billion people on the planet now have access to a computer that can truly help them in their everyday activities.

That seems like a disruption. But then, getting a ticket booked through a friendly travel agent over phone is definitely easier and affordable than using smartphone and using self service - effectively takes more time.

Self service is a compulsion in developed world due to play of economics.

[Cthulhu_]

Self-service indicates that staff income is high; it's either self-service, or increase prices to the customers, which in turn lowers availability of the service and overall lowers income. etc.