Your opinion is good enough. But the real problem is that people are not satisfied with using only one tumbler and eco-bag, and buy several products. So companies are starting to make prettier and cooler eco-bags and tumblers, and the environmental pollution that occurs in the process is more serious than the level of environmental pollution that is reduced by using eco-bags and tumblers. However, I agree with you in part because the numerous disposable products used by modern people lead not only to the manufacturing process but also to secondary damage caused by garbage.