Also to know is, is a strip wash necessary?
Waxes, sealants, glazes, dressings, and things like tree sap will have accumulated. Without strip washing these layers are then pulled up by your clay bar and/or your polishing pads. This clogs them up prematurely and, in the case of polishing pads, can lead to reduced performance.
Subsequently, question is, do I need to strip paint before repainting car? Either way, your first step before painting should be to use a metal-etching conditioner (i.e., Metal-prep), which also removes any minor surface rust, followed by a good etching primer. Don't let stripped metal parts sit and rust. Don't strip your car until you're ready to do the rest of the job.
Besides, is it legal to strip a car interior?
As I think you have gathered, no it's not illegal.
Can you strip car paint?
Destroy the Surface of the Paint
Spraying or wiping something onto the car is the easiest way to destroy the paint. A strong chemical paint stripper will remove the paint down to the bare metal. When using these products, the only way to repair the paint is to strip the car down and completely repaint it.