We can never be too full of knowledge and experience!
Yes what you may learn now may not be used until later.
Or if you do know, then maybe just maybe you think that it will be fine.
Take pasta for example.
You might put it in the pot and find that it only takes up less than half the pot.
As it Cooks the pasta expands and pretty soon, the pasta is now overflowing.
Should you have used a bigger pot or do you really know what will happen?