ds2 is 16 months and has no real words. He points at everything and grunts and understands everything I say to him. He says "ba ba" for bye bye and says the beginning of a few words. "ba" for ball, "ga" for garden, "ba" for balloon. He says dada, (even occasionally at dh!) I label everything and talk to him lots. I pointed at the marmite on the weekend and repeated the word several times. He came back with "ma".
Should his speech/language be more advanced than this? His brother had short sentences by 16 months. Everyone tells me - all in his own time. How true is this statement?