I learned recently that most universities in Switzerland have open admissions where entry to the program is pretty easy. However they do not hold anybody's hand and you have to pass your classes or can get kicked out quite easily. I am not sure if what I am saying is completely accurate feel like this is one model that would weed out people who are serious from who aren't.
The Open University in the UK (which has been running for decades) doesn’t have any entry requirements for the first year of its undergrad courses and the early modules definitely include a focus on getting people up to speed on academic writing, use of library tools, etc. I don’t know how many people make it to reach the year 2 modules (which require passing year 1)