I have 2020 3500 SRW 4x4 I drive 50 miles a day to work and back and mostly Interstate. I see mine regening more often after the weekend if I am just going around town. I have 43000 miles on it now and I see where it seems like it regens more. I understand the regeneration process for I am a heavy equipment mechanic, therefore with the tier 4 hybrid and full tier 4 idling is the death of any diesel, power units IE: pumps generators etc. that don't maintain 1600 RPM will go into derate because of building up to much soot and then after regen leaving the ash level higher to a point that it regens more often. My father always told me diesels are made to run wide open also he told me diesels burn cleaner than gas at high rpms( unknown if that's true). Boats that can run at high speeds have issues because of going to slow and get maybe 5 to 700 hours out of the engine, trawlers that only run 10 or 11 knots will get 15000 hours out of them, because they can run almost full throttle all the time. So using a diesel with variable throttle has always been a high carbon high soot problems. Ok so going back to the DPFs on our trucks is more of a sensor and expensive parts cost when they go bad. And it sucks fuel when regening. is it right for government to change , I don't know. But what I do know it's like everything else there a pain and expensive to repair. My 2 cents worth, our lives are changing everyday, either we cope with it or let it piss us off to a point it's just not worth it to me anymore to worry about some of this stuff, I can't fix it. I'm 65 I just want to move on.