In school, not every student understands what the teacher is teaching. Some people are stupid.
When you get an item, you will think about what it is and what it is used for.
When you get a new item, you should right-click and study it, and stand in the same place for a certain period of time, with a 5% chance of successfully understanding its use.
For example, picking bark, right-clicking-research, can not move, takes 10 seconds, and has a 5% chance of successful research. Failure in research will damage. You need a lot of bark.
Also, it is amazing to learn skills at the cost of LP. It takes us four years to study a subject in college.
I think it will take some time for us to learn the skills we bought with LP. And more experience and trials.
Or, skills should be like combat moves, and there is a certain chance to understand new combat moves in combat.
For example, when sawing boards, 1% can understand tables and chairs.