You're getting lots of different answers but as someone who's lived and traveled in several different countries in Europe, i can tell you that it simply depends.
In Belgium, it's obscenely expensive. In some others, it's super cheap. It depends how much the country cares about making their public transport accessible. Either way it's very inconsistent across Europe but yes there are countries where public transport is highly subsidized and truly cheap and accessible. Which IMO saves a lot of costs elsewhere, it's the right way to do it.
In Belgium, it's obscenely expensive. In some others, it's super cheap. It depends how much the country cares about making their public transport accessible. Either way it's very inconsistent across Europe but yes there are countries where public transport is highly subsidized and truly cheap and accessible. Which IMO saves a lot of costs elsewhere, it's the right way to do it.