Just found a trick I never noticed before. For full desktop sites you can go to settings--Safari--Advanced--Request desktop site--always and it seems to make mobile sites go away.
I really miss though how you could just modify an URL to force desktop or mobile by including the "m" before the full URL. Example: Desktop YouTube =
https://www.youtube.com Mobile Youtube =
https://m.youtube.com
Then sites started to redirect to mobile automatically. I guess because they have to cater to the stupid majority users who can't figure out URLs. I'm glad I pre-dated the internet and actually read computer manuals.
My grandmom is 91. She used to have a laptop running Windows Vista (she was using Windows 98 in 2006!) and she sadly fell for every single "you've won!" advert that'd show up as a banner and got it filled with viruses which made me have to come and wipe and reinstall her OS every month or two (thankfully she had no apps/data to worry about losing--she only uses it for Facebook)
She finally upgraded to a Windows 10 PC and while she still falls for those ads, Windows Defender thankfully has stopped the viruses. She has a smartphone (was forced to--she was using a 2003 Samsung SGH-x427 flip phone from Cingular's era; stopped working when AT&T killed GPRS/GSM 2G) but hates it. Can't unlock it, can't figure out how to access camera or answer a call. Heaven forbid laptops stop existing into the future.
If you only use a tablet or iPad for say YouTube or games or Facebook (which is about all I use mine for since there's ZERO chance of it ever replacing a Mac or Win10 PC) it's fine. IF you actually need work done a laptop has no equal in a tablet.
I'm old fashioned despite my young age though, but tablets for me are for media consumption as Steve once said about the iPad 1. I also see smartphones as convergence devices, replacing things like remote controls, cameras, flashlights, etc in one device. I will never feel inclined to strain my eyes watching TV or doing whatever folks do on those Zack Morris style bricks that have become the new normal.