What if the police handcuffed everyone up front?

I have an idea, and I was wondering how such a cogent group of commenters would feel about it. It’s just a thought, and possibly a stupid one.

Idea: Any interaction with police where they are doing their job, and it involves a crime, they immediately handcuff everyone involved.

If you run a redlight, everyone in the car gets handcuffed. (Except children in car seats)

Pros:
-everyone gets handcuffed by the police.
-It normalizes the police having control during their duties
-Police with less strength would be more confident.

Cons:
-constitutionality?
-psychological trauma
-potential abuse

Or-

If you are afraid of police brutality, could you request to be handcuffed immediately for everyone’s assured safety.