[waboremo]

None of these reasons are exclusive to touchscreens, you haven't really justified why the touchscreen results in a worse experience. Even the scrollbar example, phones have those still, they just aren't the huge glossy things of windows XP. Or the idea that feature creep requires more items on the screen, when the reality is different, features get dropped and more things are hidden under different tabs. Which is a problem itself, but not the one you're describing.

I do agree however regarding accessibility. But again, this problem exists no matter the interface. Old people aren't thriving on desktops, they're struggling to manage flip phones with actual large buttons on them. We need to do more here, but I sincerely doubt changing the interface will solve the problem entirely.