'Old Enough!' on Netflix sparks debate over sending very young kids on errands : Goats and Soda : NPR
https://www.npr.org/sections/goatsandsoda/2022/04/20/1093153651/a-4-year-old-can-run-errands-alone-and-not-just-on-reality-tv

Note how eliminating cash also makes it difficult to send kids to the store to buy things.