Problem is it's sometimes harder to learn by yourself. I wanted to prepare beforehand for my 2nd year but I just wasn't able to during the summer because I needed some prior guidance, insight or the right path to be shown or that specific way of thought that sometimes isn't available from books alone. I mean it would be extremely hard to learn martial arts like kickboxing by yourself reading books and watching youtube videos. I mean even brucelee needed to be thought a bit at first before he made up his own stuff, what im trying to say is you need a teacher sometimes to give you those little insights.
Geniuses only pop up every now and then and I certianly ain't one of them...atleast not yet
By increasing the prices of uni it will now be needed to work at least 2-4 times longer than you would have before to fund yourself to study in an other discipline where you can support yourself financially because the government certainly wont fund you, why should they they already did once and no one here is asking for that nor expect it.
Currently you are expected to just be knowledgeable in just one discipline and work for the rest of yourlife? lolwut?
There's also the other side of the coin that hasn't been explored yet. e.g You've just got your 1:1 in physics, well done...but do you know how to implement that in the immune system or biological systems? By people being thought multiple disciplines discoveries would probably be more common and we advance faster.
My personal plan was grad from biochem, work for like 10 something years and save up so I could study physics so that I could possibly contribute to determining a proteins structure just by looking at its amino acid sequence. Just an example. Now that's kinda out the window.
Not everyone is content with just one discipline