In a lot of places the internet is there, but realistically the public transport never will be. It would cost so much to provide a service in every rural area that 3 people use that its totally infeasible. I think this is the situation where cars make sense, for people where public transport isn't a realistic option.
Cars make sense because the public transport hasn't been built out. Trams could be used without the need to employ drivers until self-driving cars come around.
There's a lot that can be done if the will were there.
Your mentioning of trams makes me wonder if your thinking the same kind of rural as everyone else like ah yes let's build a tram track to this one random dudes house nevermind the animals and rocks that would damage them on top of how id probably just be going over already made roads because you can't really put a track through someone's field especially when it's a graseing field and when it comes to mountains and cliffs the road is the only road you can make and at that point why not just let the guy drive a car they guys out there are already rich enough to live in the middle of a forest so they for sure can afford a car that goes wherever the hell they feel like
Where there's an asphalt road, a tram can be put. Many places have a main road that's asphalted. Public transport doesn't mean "Build a stop in front of my house". If I can walk of bike to the tram, train, or bus station in under 30 minutes, it's accessible.
Also, in mountains there are gondolas. Trams are able to go up crazy inclinations too. Just go to Switzerland, Portugal, San Fransisco or other places with steep roads that have tramways.