He does the classic 'w' instead of 'r': wed = red; thwee = three; wunning = running etc
Is it okay for him to do that? When should I expect him to stop? I don't want to make an issue out of it but I do want to help him, if I can.
We worked hard on saying 'th' instead of 'f' but it went too far and he now says 'thingers' instead of 'fingers'