Not telling anyone to upgrade to 20" wheels. And I get that this is an off-road enthusiast forum that tends toward more off-road biases...
From a reality standpoint, as one that uses the stock 20" wheels of the LX. I'll say that there's no limitations for 95% of people. Especially when paired with a larger diameter than stock size tires that lends more sidewall. At some point, too much sidewall can makes things sloppy too. I get it's a style thing as I wouldn't ever slap 20s on a LC.
My car, and just about everyones here, is utilized for mixed use. There's been some nice advantages of 20's too. Including more on road stability, better steering feel, towing sway resistance. It still works friggen great off-road with 33" tires, which is speaking partly to the merits of the 200-series platform. I have yet to experience any terrain that I'd honestly trade the 20's for smaller wheels given the balance of qualities I have now. Sand with 20s? Yeah, not worried about sand in the least when aired down as any tire should be.
My comments were directed at specific mention of sand, tread, and especially airing down. Looking for more sidewall is not a “style thing” if you actually wheel much.
Benefits of strong, usable sidewall when aired down is not a controversial idea at all.
It is a basic wheeling concept.
Even novice or occasional wheelers who air down benefit from reduced risk of pinch-cuts afforded by taller rubber. It’s a lot easier to pinch the tread against the wheel when it’s a shallower space between rock and wheel. Going from 20” to a 17” means a full 1.5” of extra leeway between ground and wheels, and more footprint at low psi.
People can always choose whether they still prefer the look and maybe a slight street benefit of taller wheels with lower profile rubber, but surely we can all agree—shorter sidewalls are NOT a benefit off-road.
Not suggesting you can’t aggressively and successfully wheel with a shorter sidewall, either.. Plenty of 20” wheel drivers are kicking booty out there including some great drivers on here. Everything is a matter of degree.
I have yet to pinch or cut to the point of failure off road despite my tires/wheels taking a severe beating while aired way down. I’ve needed the full spread and depth many times. YMMV as always, and there’s never one answer for all.
As you say, most aren’t pushing the limits. But people who do...or who are just concerned about pinch-cuts might wanna consider taller sidewall.