I don't always follow the age guidelines... I use common sense... Like for instance i wouldn't buy Elmo Live for Alexa (18m+) as amused at she may be by it, other things can fulfill that, and by the time she can play with it on her own, it will likely be half price. The sit-to-stand walker I bought her is 9m+ but she can play with it, and loves it... she was five and a half months when we gave it to her. Some of the age guidelines seem a bit off, so it is best to just get what you know/think they will play with. IMO.