Earlier quoted context omitted.
> Why didn't Orange UK, Orange France, Orange Switzerland, Orange Egypt, Orange Romania, etc. work together to give free calls and free internet access on each others' networks Because they made boatloads of profit from charging their customers for roaming.
Sure, but they could instead sweep all the customers away from their competition since the same parent company has a foot in multiple countries. They could have even undercut business from Skype by offering almost-free roaming. Also, if roaming charges are prohibitively expensive, people just stop using roaming. If they are at least reasonable, they will profit significantly more because people will actually use it.…
They didn't need you. Their real customers back at the time were businessmen with next-to-unlimited travel funds.
These days it has changed because especially young people demand being able to Instagram/Snapchat their travels from anywhere... but still data in Germany is horribly expensive.