I stay at home and my son is almost 3. Honestly, I spend a lot of time playing with him or reading to him. Hours. He is an only child. The more time I spend actively playing with him, the more I find that he is comfortable and happy to have other times on his own. Kind of like filling his attention cup. On days it is full early, I have a bit more flexibility to multitask. Days I can't really fill it early, I have trouble getting anything done. Some days the cup seems infinitely large. Other days pretty small. When he finds a compatible playmate on the playground, he has no interest in me whatsoever.