We got rid of trams last century because there were better engineering solutions. Buses got more efficient, larger and more comfortable than they used to. Also within a city metro is much better and faster. They are also electric now. No need for investing in tram infrastructure for most cases nowadays.
Also when talking about rural I don't think if we are talking really about trams, more like low distance trains, at least that's what we call them here. They use full train infrastructure. Trams are more for cities.
What I don't get is why some people cannot be happy with a 70% traffic reduction in cities ? That would be a great objective that would get rid of tons of emissions and problems without that much fuss because it's easy to provide not only the same but better life quality with that objective. But some people feel the need to push to really hard extremes that, imho, only make people to push back over any attempt on traffic reduction. We could do a lot with proper demand control instead of trying to push a lot of restrictions on people and wanting to take away rights and life quality.