You can’t just hire one person to manage that many countries. Even if they spoke all of the languages, and the incoming customer support workload was low enough, they would still be operating in countries with different laws and probably requiring their own corporate entities with their own accounting and legal experts, and any third-party software that you use to do all of this also has to be licensed for that country.

Big companies are just a mess, and they’re not gonna spend the time, money, and risk building out a thing in a new region for probably a few hundred K per year.