A young Asian child stands at the top of some steps and does n't seem to notice the person taking their picture.
A child notices his mom taking a picture.
The child cannot both notice that his mom is taking a picture while also not noticing the person taking the picture.
A child does not have to be young or Asian.  A person does not have to be a mom.
If a person doesn't seem to notice something they can't notice something too. Those things contradict each other.