Pinkie Pie is not old enough to be Will's mom, she never says that. She does say she's old enough to get married, which is true, and the most obvious way of conveying her age. She's old enough to be his teacher, big difference. I had several teachers in their twenties when I was sixteen-ish, so that's a thing.
Yeah, it worries me, too. Mostly the notion of having to go out and drive places with traffic being what it is (ie a bundle of stress and accidents waiting to happen) and get my own food, not to mention getting a job.
Speaking of work, got started on Synfig yesterday, finished the first few tutorials successfully, Filly model needs to be torn down to before the facial shapes were added because I mucked up the symmetry, apparently. I don't know, the thesis thing is up in the air at the moment. Think I'll try a bit of Wesnoth this morning, then Blender, then finally get started on Quorum Sensing 3. If I do one chapter per day, it'll be done by next week.