How to avoid running a residential proxy (especially on Android phones)?

I think many of the sorts of people reading this might be able to help *detect* them at an individual level, and help with raising awareness. Manufacturers are starting to react to complaints about this, and "Why is my smart fridge reading porn sites?" (or camera, baby monitor, TV, etc) articles should have an effect. There are also people convicted of crimes primarily on the evidence that their home IP address was responsible for some piece of traffic, so "Insecure LG smart TV could get you jailed for piracy" is another good headline