Actual children who require a stroller should absolutely stays strapped in a stroller and we should accommodate that.

That said, as a disabled and middle aged person I am routinely baffled by adults who think their able bodied children are more in need of a seat than actual adults who have experienced gravity for decades so it's hard for me to be completely empathetic to the struggles of people who spend more on their strollers than I ever have on any mode of adult transportation.