There are business that must have an mobile app and a website, you can't screw half of your customers and tell them to buy other phone. Developers did not like

There are business that must have an mobile app and a website, you can't screw half of your customers and tell them to buy other phone. Developers did not like to develop for IE but the businesses had no choice to support IE because the customers were demanding it. So as a individual you can decide to buy an Android but as a business sometimes(maybe most of the time ?) you can't decide not to support iOS or Android, you have to support both.