Shoes, shoes, shoes

So, I am not sure what to think of the fact that every time I find Addison over by the shoe bin, she is pulling shoes out by pairs. She is 12 months old...can this really be possible at this age? Mind you, with Connor, I was under the impression that his childhood development was "typical" until he was about 18 months old. We had Addison receive a full developmental evaluation by ECI (Early Childhood Intervention) when they wanted to see her for low muscle tone and her delay in gross motor skills. At the time, they told us that she was at a 17 month cognitive level. Is this why she is pairing shoes or should I be watching her closely from here on out to watch for those signs I saw with Connor?

On a good note, she was ONLY 2 months behind with gross motor and speech on the day of that eval which was around May 23rd. I have already started seeing a ton of progress so I am curious to see where she scores on her 15 month developmental questionnaire.