Midwives were replaced by the male-dominated medical industry, which initially raised infant mortality, nevermind women losing autonomy over birth. Night soil

Midwives were replaced by the male-dominated medical industry, which initially raised infant mortality, nevermind women losing autonomy over birth. Night soil collectors were replaced by partial sewage systems, which resulted in cholera and typhoid outbreaks. Local butchers were replaced by meat packing plants. The Jungle tells us why this didn't go so well either. In all three of those cases, we rushed to an incomplete solution before it was fully ready. In this case though, no one's banning humans from driving cars anytime soon, so that part of it will go okay.