trinaninaphoenix- that is really interesting about how they were so different from each other. I have also heard that boys in general do develop speech a bit later than girls. DD potty trained at 20 months and I actually would recommend doing it if your 18 month old is interested. We waited to 20 months only because we were moving and traveling before then. We did the three days no diapers or anything. Then loose-fitting pants after that (no underwear for 3 months due to the fact they can forget and think they are in diapers). Good luck!
