Welcome to the site.
This "oil life" issue seems to be a common discussion point ... and no one seems to be in agreement with the people who ACTUALLY work in the petroleum industry. Since I am an instructor at a school where we teach people how to work on vehicles of all types, I've had the occasion to speak to visiting representatives from that industry.
Engine oil will last well over 10,000 miles in a good engine. Even the "cheap stuff" from discount and department stores will last for more than 10,000 in a good engine. It's the definition of "good engine" that determines how often you should change your oil.
New vehicle, less than 100,000 miles on it, with oil changes at the required intervals ... is still running within "break-in" tolerances. Modern day engines, unlike the folklore, are NOT designed to fail. They will outlast most other parts of the vehicle, if the lubrication system is maintained.
I would say, without reservation, that you can trust the "oil change indicator" on your new vehicles.