Yes but.... you're not telling the truth. "They" (the experts in the field) say 10k. "You" some no name on the internet says 3500.
I've run the lab tests on my used oil in the past. Then spot checked every 50-60,000 miles
The third party lab with no skin in the game says the oil in my car was in great shape and had life left to go at 15k. So I know for a fact in my car, 10k is way conservative. Since you ABUSE your car, ya better change it more often. I don't Baja race mine, so 10k is way conservative. My last hybrid burned no oil, passed every smog check, got EPA gas mileage or a tad above for the first 235,000 miles with 22 oil changes in it's lifetime. Was running great when it was rear-ended damaging the traction battery. Otherwise I'd still have it.
Do a lab test with your used oil. Then you can have some validity in what you say. I'm sure you're nice guy. But thinking chicken soup cures cancer does not make it true, as thinking 3500 mile OCI makes your engine last longer doesn't actually make it last longer. It's wishful thinking.
Change your oil at 10k. You'll ditch the car for reasons other than blown engine. Something else will go wrong first; or you'll get bored with it and sell/trade it. This isn't 1963.
You know, deep down, I'm right.
Toyota isn't out to get you.
They aren't giving you bad advice.
They tend to be really conservative if anything.
But then again; you probably use 91 octane when the manual says 87 is proper.
And you are probably super wealthy so I shouldn't try to help you.
Me, not rich, spend $1250 on oil changes in 250,000 Miles.
You, rich, spend $3750 on oil changes in 250,000 Miles.
Me, consume one-third as much of a limited resource.
Me, have more money in the bank for other fun stuff. Oh nope. I forgot. You're super wealthy and OK with being wasteful. My bad.
Me have nothing to gain by sharing with others the very good results achieved at 10k oil change intervals on last couple of cars, both with high mileage. I use Mobil 1.
2000 Honda Insight : 17 years, 185,000 miles, 19 oil changes, trouble free and sold pre-pandemic (2017) for $3000.
2005 Ford Escape Hybrid, very similar engine drive train, as the Venza, trouble free with 10k (or more) OCI and was a strong, clean running machine when it was rear-ended at 235,000 miles in year 2020. That was the car I did a few lab tests on. But was almost identical to the Venza under the hood.
Neither car had a dime of engine work done. Why? Ran great with better than EPA advertised MPG.