M.K.
To each their own. I stop at one year. I never had a problem with them giving it up.
My friend, however, was in the camp of they will give it up when they are ready. She, in fact, still has a first grader that takes a bottle (not a sippy cup, but a true, with a sylicone nipple, bottle) before bed and a binkie. The little girl will LIE and say she doesn't have either because she does not want her friends at school to know because she knows she will be made fun of so it is a big 'at home' secret. Mom just doesn't want to deal with the tantrum that will insue (this little girl is now from a divorced home and a master manipulator!).
I realize this is an extreme case! And very rare! But, my friend never thought it would happen to her.......and in fact, USED to make fun of/judge other moms in the mall while we were out shopping together (and would justify it because it was 'only at home, not in public.'