Here is my thought.....it can't hurt anything to let him go to daycare! I have a almost 3 yr old, Kaden, who has Grandmas that just short of fight over who keeps him during the week! However, at 2 yrs old, we felt he was lacking verbally because he really didn't have to speak for anything at their houses. A the Grandma's I know he is well taken care of and loved (and spoiled), but it is not their place to "teach" him. They work with him on numbers, letters, etc, but, he is their grandchild, and, frankly, he really didn't pay much attention! He was not at their home to learn-that is where a daycare comes in! We ended up putting him in a Mothers Day Out program 2 days a week, from 8:30 to 11:30, and it is perfect! The Grandma's still get their time with him, but he is also getting that structure of a classroom setting he will one day need for Kindergarten. And, now, we have a little one running around who will not stop talking, and knows his alphabet, numbers to 15, colors, and shapes. Point of this being that perhaps you should look into something part-time to begin with, and go from there!! Good Luck!