Awesome! Sounds really interesting. You might be interested in pragmatics/developmental pragmatics based on what you said in your second paragraph. Humans make crazy amounts of inferences all the time so that we can reduce the cost of communication (being perfectly precise is incredibly costly!). You might be interested in the so-called "tug of war" between quantity (be brief) and informativeness (say enough for your speaker to understand what you're talking about). I think Steve Levinson might have a good review of this, and ofc Grice is always good.
I probably would. As a philosophical stance, pragmatism is very attractive to me, so understanding related scientific concepts should be pretty interesting too. As it happens, that "tug of war" is a common conflict in philosophical and scientific writing. I'm sure you've probably encountered some philosophical works or scientific studies that were just plain wordy.