My LO is 27 months now and still takes an afternoon nap. He does love his sleep
When he turned 1yr he dropped from 2x 1.5hr naps to 1 2.5hr nap on an afternoon.
Recently I have thought about phasing them out as he was waking uber grumpy (remains grumpy for the rest of the day then) after every nap for the past couple of weeks and others have mentioned that cutting the naps out seemed to solve the problem. But He still really needs them and is falling asleep at 2pm otherwise.
How does Mady sleep on a night? is she ok? Usually just a routine quiet time will be fine if they not willing to nap, like what they do at nursery with the story.