You're a better man than I, I switched out the outlets and switches, sold the house and moved.After first moving in to my current house, I discovered aluminum wire while installing the new dining room chandelier. I became nauseous almost to the point of puking.
I bought the special wire nuts and cu/Al compound and special co/alr outlets and switches and re-did everything. Still couldn’t sleep at night.
I got to leverage my drywall repair skills by carving walls open and replacing all the aluminum wire with copper.