Group 1 - The core idea is that while it is normal for young children to cry, parents should adjust their parenting methods to help children develop emotional skills [1] - Children cry for several reasons, including physical discomfort, emotional needs, and lack of security [2][10] - Physical discomfort is the most common reason for crying in young children, which can be linked to factors such as insufficient sleep, unhealthy diet, and overwhelming environments [3][5][6] Group 2 - Children may cry to express their demands, and this behavior can be reinforced if parents give in to their cries [7] - Parents should clearly define which demands they can accept and which they cannot, maintaining a consistent approach to avoid reinforcing crying as a negotiation tactic [8][9] - A lack of security can manifest in behaviors such as separation anxiety and fearfulness, often stemming from unstable home environments or inconsistent caregiving [10][11]