[const_cast]

From what I've seen with regulation this isn't the case, rather the opposite is true. The more we force it, the more understood it becomes and eventually it fades into the background and nobody cares. We've already had this exact conversation in the 80s with seatbelts.

Believe it or not, there were a lot of good arguments against seatbelts. And they were genuinely believed. And they were popular. And, they are now well past extinct.

[potato3732842]

Seatbelts on new cars is on a wholly different level than "I'm gonna force existing vehicles to take mandatory upgrades at great cost because F you". The level of public compliance you're likely to see with the latter would make the people removing emissions systems from diesels look like good little goose stepping in line central europeans.