Why can I use / use a laptop / notebook as a student?

I'm 14 years old and graduate in the current and upcoming months for what a laptop / notebook would be handy. I would love to buy a notebook, but I think that I will not benefit then anyway. For the school, it would be important to me to have such a thing and in private I would love to own one but I still remember that I then no longer need it.

Would it make sense to buy a laptop / notebook?

On the one hand, a laptop makes sense in order to achieve guaranteed compatibility in presentations, on the other hand, bus and train travel as well as longer breaks can be meaningfully used with the help of a notebook. Otherwise, a laptop will not do you much good.

At school… N Laptop Use during the breaks?

Meant are 45-minute breaks. In these you can easily use a laptop. What speaks against it?

Does it matter if you have one for him? He is a relatively compact all-rounder. Not very light but not heavy, relatively small, but much faster than any smartphone.

You have to find the area of application for the laptop yourself. When I'm out of the office my laptop is usually there, as I often go to friends or go to school. I strongly doubt that the laptop you use will be used for gambling. But mostly for short searches, things search / find, write, type, make presentations, etc. Is this pretty handy.