Yes, whenever I hear my voice (sometimes have to use audio and video recording for training on my course) I'm really thrown by how young I sound. And I've noticed in therapy over the last few months, the little one that I become has her own words for things- over-regularizing the past tense of verbs ('I goed') and immature speech sounds ('then' becomes 'den') and all sorts of things. T never comments, and I try just to go with it rather than become judgemental and try to stamp it out.