I may not blame you if you say there is no error in the above statement. I won’t outright accuse you of hurting English. The reason is that it is a common saying that is not supposed to raise eyebrows. The fact, however, is that it harbours a generational error that should be dealt with like any other generational problem.
In terms of meaning, only too few people will not know what ‘talkative’ indicates. The problem lies in placing it into the correct grammatical class. Specifically, it is an adjective that many wrongly treat as a noun. When someone talks a lot, we say he or she is talkative, not that he/she is a talkative. Because it is an adjective, the article ‘a’ is unwanted in the clause:
I don’t want Juliet to go with us because she is a talkative. (Wrong)
I don’t want Juliet to go with us because she is talkative. (Correct)
Because she is a talkative, all eyes are often on her. (Wrong)
