Design Systems: A Way to Deliver Quality at Scale

Design systems are essentially a way to deliver quality at scale. If you spend a lot of time systematizing or systemizing, then you have a much better chance of delaying the inevitable based on my sort of pessimistic views of how possible quality is at scale. How does a company know at which point they need to start thinking about design systems? I think anytime they're looking to scale up, you kind of have to.