The short answer is yes. Separation anxiety exists, not just with children and babies, but with animals and adults - it’s how you deal with it that’s key. It’s a fact that separation anxiety and fear of strangers is common in young children between the ages of 6 months and three years, but it's a normal part of growing up, and they will usually grow out of it. According to the NHS website, separation anxiety is a sign that your child is growing up and realizing other people play a part in his or her world and this realization, as normal as it is to a grown-up, will cause distress to a child. Recognize the Signs Breastfeeding mothers will recognize the signs immediately. Your baby or young child will cry…