My general contractor buddy once explained to me the state of plumbing: "We used to make plumbing with lead and cast iron pipes, but that old tech would only last 50 to 100 years before it needed major maintenance. Then we modernized with copper pipes, which gave us about 20 years of working life. We really stepped into the modern age with PVC pipes, which generally give us a solid eight years of working life."
That said, I redid my house and sailboat with PEX, and it's been solid AF. And anything that can survive being on a blue water sailboat is probably going to last a century in a house.
Incorrect! It's not burritos; it's tacos. There's even video evidence: https://youtu.be/zYpuuLLKQx4 (Ask Your Doctor About Tacos)