It's nothing like that. People do read books outside. They don't use laptops outside. (Statistically speaking.) "Meeting people where they are" means two very different things in those different contexts.

> reflective screens usually don't have good colors

Yes, you have to pick your tradeoffs. If you want an outdoor-viewable screen, that will probably mean some sacrifice in refresh time, resolution and/or color gamut. This is why the only place you do find reflective screens is dedicated e-book readers. Brighter transmissive screens are not a solution in this problem space, so this use case does not justify them.