I don't believe it either. Some dragons MIGHT lay a bit sooner in their life at a younger age if they are power fed and grow quickly but I haven't seen real evidence and I've also seen lean young dragons lay eggs around the 12 month mark as well. People hear things like this and it takes off. Keep in mind that some dragons lay in year 1, others at age 2,3,4.....all the way up to 8 [ the oldest I can remember ] and at those ages they may lay just their first clutch ever, they may skip years or they may lay all of those years.