I understand this better as an aging adult than I did as a kid - namely, one of the reasons we might not like to study:

Studying is not doing.

Yes there are so many things I want to learn.

But my clock is ticking. There are only so many moments out there and in here.

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Note: studying *is* doing. It's working through material, rehearsing and absorbing and relating it, and often enough, if we're studying well, sharing it. That is certainly a kind of doing, just as thinking through an issue carefully is a kind of doing, or making a detailed plan is a kind of doing.

But we are also animals. We have large brains, much of which realize they are not being used in anything that looks very active or world-influential right now.

Reading a whole textbook is doing something, for sure. But much of us would feel that playing a basketball game or going on a date or giving a presentation at work is doing a lot more.

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Ironically, reading a whole textbook might amount to doing more than going and marching in a protest. The one can expand your understanding dramatically, changing the potentials of the rest of your life. The other... might contribute to society reaching a tipping point, but then again might not contribute appreciably.

Either way the action is a megaphone we breathe into with our volition.