Just keep in mind that installing an app via the respective app stores (just install, not custom settings) is often the limit of what people can, and are willing to do.
People just simply don't have the time, willpower and/or knowledge to get a controlled LAN working. It's similar to how you don't expect everyone being able to fly a helicopter, or build a car from scratch.
My greatest joy in life is learning new things. I have never, ever had coffee. I've never been interested. Just simply never cared for it.