OP - your DD is only 2! My DD2 is the same age and while great at talking, can barely draw a face or do many other things that DD1 and other kids could do at the same age. They all develop differently. When DD1 started prep there were kids who couldn't read or write a word, many start being unable to speak much English at all. They all learn and they all do it at their own rate. Don't stress!! Hey my DD2 still refuses to use the potty or toilet!

BTW - my DD1 is in prep and is reading and writing at a grade 2 level. She went to CC at 12m when I went back to work. It hasn't hurt her at all.