(parent here) I completely agree and that's a very valid scenario. Apple tactical advantage is that consumers have completely different usage patterns and exp

(parent here) I completely agree and that's a very valid scenario. Apple tactical advantage is that consumers have completely different usage patterns and expectations than the enterprise/lab (which Apple essentially ignores). If %95 of consumers either (a) upgrade within five years or (b) are completely perplexed by the notion of updating their operating system at all, then Apple are at a huge efficiency advantage EOL-ing technologies around the five year mark. As opposed to having top engineers work on maintaining compatibility with deprecated APIs, old hardware, etc. for 15 year old software.