In Germany university is mostly free. There are administrative fees in the range of ~200eu per year, and most universities have a subsidized but mandatory trans

In Germany university is mostly free. There are administrative fees in the range of ~200eu per year, and most universities have a subsidized but mandatory transit pass, which might be another ~400eu per year. There were explicit tuition fees in some states, a decade ago, but since they have been abolished it's usually below 1000eu/year (exception are private universities of course). You need to have finished high school to qualify for university, but if you then get into an unpopular field, that is the only real restriction. More popular fields of study at more popular universities require a good high school diploma, but even there it's possible to sit on a waiting list for a couple of years.