I'm glad I put my DD into daycare at 4 months old. She's been going for almost a month and has been a much happer baby and her social interraction with us and other adults and children is so much better. She's very confident even at almost 5 months old. Also, I returned to full time work and for me it was a tough decision but the thought of returning was harder than actually doing it and so far I'm actually much happier working than I was when I was a SAHM.