Hard-to-plan demand makes sharing models more difficult, even when sharing is technically possible. Customers need reliability, availability and operational certainty, especially when equipment is part of a production process.
In circular manufacturing, this means product sharing is not automatically the best first step. A company may create more value through maintenance, lifetime extension, refurbishment or take-back before moving towards shared ownership. The circular model has to fit the actual use context, not only the theoretical potential.