In the 23 years at my house I have lost the ground once, and a phase once, aluminum connections made by the utility company, using special utility company splices and special high dollar crimper off their transformer out on the pole. . . Wires were badly burned both times. I check the entry into my house every few years. I replaced one of those connections that showed signs of being warm
My trailer on the lake was aluminum, we went and tightened everything, every presidential election year. We sold it about 10 years ago. It burned down 2 years ago. No one home. I do not know why, but I suspect
Do what you want, I personally avoid aluminum. And you do not know the quality of the original wire job. Copper is sort of forgiving. Aluminum not so much. I would go thru everything, to make sure.