In India this was the situation before 2016. Calling was expensive, data was a luxury. All telcos were rent seeking parasites who just wanted to extract as much

In India this was the situation before 2016. Calling was expensive, data was a luxury. All telcos were rent seeking parasites who just wanted to extract as much money from their customers as possible while providing the bare minimum service. A small company called JIO realised that people actually like it when they are not being abused this way. It launched a cheap service with a very simple payment model. Fast forward 5 years and all the other telcos are bankrupt or nearly there. Data is dirt cheap, calling is free. Even the remaining telcos have switched to the JIO model (and pricing)