In all fairness, it seems like only a small age window that's fluent with starting a sentence capitalized and ending with a period-and a space. I help a lot of older people (retired, ~60+) getting into technology (hands down one of the best part-time jobs for highschool students) and I see this kind of stuff all the time. "hello Carly.how was your weekend?the dog and I went to blah blah blah" you get the point. Folder names too. Watching someone type "pictures" instead of "Pictures" and having to bite your tongue... GAH!