Also, UV fades the paint. Even if you could get pre-painted panels, they wouldn't match a car that's spent much time in the sun.
I had a rattle can tinted to match the factory color on my hood. It wasn't even close on the 12 year old car. On the outside of the hood. The inside of the hood would've been pretty damn close.
We see the same thing in modern interior design. Just like many of today's cars it's black, white, and grey. If you're lucky, maybe a neutral color or two. Inoffensive, but soulless.
[1]: http://importarchive.com/toyota/corolla/1980-1983/paint
[2]: http://importarchive.com/toyota/corolla/2014-2018/paint
However, it does help explain why cars come in fewer colors today- dealerships hate having cars sit unsold on their lot, and don't want colors that appeal to a tiny percentage of potential buyers. If manufacturers struggle to push colors onto dealers, then they simply stop making those colors.
Speaking of soul... if I was given a choice between the "4C8" variety of orange and cheaper insurance premiums, I'd pick cheaper insurance premiums in a heartbeat. Maybe I'm a souless impersonal robot (I've been accused of being a robot before, not so much the rest), but I really don't feel a need to express myself with the color of my car. The extra color options are very much in the "nice to have" category.
And thats the thing, those that are interested enough can still go and get their car repainted, without making it more expensive for the rest of us that aren't as concerned with having their cars be a unique color.
The premium manufacturers usually offer colors other than neutrals at a premium, and what the OP is pointing at is that economy brands don’t offer that option at all. Why can’t we have both cheap neutrals and color options?
No one wants to bear the extra costs for color lovers. Dealers don't want to be stuck with the banana-yellow cars for months on end, and manufactures don't want to switch their painting booth paints for colors that are <1% sales when they can crank out 5 more white cars in the time it takes to switch colors.
Wraps are cheaper alternative to repainting, so those who love bright colors can get an electric blue wrap right off the parking lot.
Not to mention that even supporting the pipeline of being able to order custom colors, with all the logistics that entails after manufacture, might not be something the manufacturers want to support.
for whatever reason, paint and detailing work tends not to be the strong suit of a car dealership. a lot of enthusiasts will even refuse a complimentary wash when they get their car serviced.
the higher end manufacturers do offer additional paint options. but it's really expensive (Porsche charges >$20k for true paint to sample) and it takes even longer to get your car delivered. it's hard to justify at any price, but especially for the vast majority of cars that cost under $100k.
If it was important enough to a large enough group of people, you'd think manufacturers and dealerships would jump at the chance to offer another high margin markup line item. I personally wouldn't mind a less neutral color, but I'm not interested enough to pay more for it myself.