You don't know the teenagers I know. It can be rather embarrassing when a 14yo corrects your spelling, grammar, or punctuation. It doesn't happen all that often - but enough for me to take special care if I am having an online conversation with any of them.
That’s just what young adults do.
She is just stretching her wings and giving you a gentle jibe.
I can relate. My 16-year-old son corrects me when I’m speaking. I used to proofread and write, but I didn’t walk around correcting people when they were speaking. These kids sure keep us on our toes, though, don’t they?
Good for them and you. They obviously had some teachers of various types along the way who taught them well and they use this to their advantage.
I serve on the board of a small group which provides scholarships to up to ten college bound students per year. Their application must be submitted with a statement of at least one and one-half pages on why they should be chosen, what they intend to study, etc. Everything had to be handwritten. We received 63 applications this spring and accepted 8. Of those eight, only five had no spelling, punctuation or grammatical errors, were very legible and exhibited awesome written communication skills. IMO most of the remaining 55 will have to take some type of remedial classes in order to make it through their course work.
We began our program 7 years ago, received only 18 the first year and wish we had had enough money to help all of them. This is a very small sampling to be sure, but we have noticed a gradual deterioration in the quality of the output from the applicants.