Literally the top results for US smartphone ownership. You can do it.
> that those that make do with only phones would even want to purchase a tablet or laptop?
That's the whole point - they don't need / want one. But given the services that everyone needs are moving online, everyone needs some level of internet access. This effectively moves windows users to Linux/Android as discussed upthread.
I see. So you're not actually going to even try and answer the question? No evidence? Just "I'm going to conflate desktops and phones to make my point?"
Edit: also, conflating phones with "desktops" is just being glib and disingenous.