My son could count to ten when he was 18 months and knew all of his ABC's before he was 2 plus a few sight words. By the time he was 3, he was reading Dr. Seuss books on his own, and entered kindergarten reading at a 3rd grade level. He mostly picked this up from Sesame Street. Brilliant, right? Well, I can show you a pile of fail notices, notes from teachers and, and one pleading email from a priest who taught him religion in high school. I thought that poor man was going to quit the priesthood the day my son put a very rude remote controlled noismaker under Father's classroom podium. LOL! It's funny now, but not so much back then.
My son will be 20 soon. He's a great person, hard worker and majoring in meteorology at a state university. It took him quite a while to figure out that he actually had to do some work to get good grades. In fact, he didn't figure out that little bit of wisdom until we refused to pay his college tuition and he went to community college for a year and paid for it all himself. That's when I told him he was a genius, when he figured out that he was wasting HIS money if he failed a class. What a run that kid gave me!
By contrast, my youngest is a Stepford Student. Does every assignment, gets good grades and his teachers sing his praises to me at every opportunity. He could barely read until about the middle of first grade. He also never smiled and rarely talked. We really thought he had a serious delay. Can't shut the guy up now. He's 6'4" of good-natured, straight A fun.
You just never know about kids. Hang on, enjoy the ride, and don't make any plans!