In part it's touchscreens... But these are also slow, laggy, unresponsive systems. That often aren't great. If users could load their own launchers, could have

In part it's touchscreens... But these are also slow, laggy, unresponsive systems. That often aren't great. If users could load their own launchers, could have flexibility, they might be more agreeable. Touchscreens are a tool of software, but these are hard-cast experiences. That loses most of the advantage right off the bat.