I think children are more open with their feelings. They don't really know how to hide their emotions yet, so they tend to express themselves freely. For example, if they're happy, they'll laugh and smile, and if they're upset, they'll cry or pout. They don't worry about what others think, which makes their emotional responses more genuine and spontaneous.

Adults can also be open about their feelings, but it often depends on the situation. Some adults might express their emotions more freely in private settings or with close friends and family. Social media has also become a platform where adults can share their feelings openly. However, cultural differences can affect how openly adults express their emotions, as some cultures encourage more reserved behavior.

It really depends on the individual and the situation. Some adults are very expressive, while some children can be quite reserved. Factors like cultural and familial influences, personal experiences, and personality traits all play a role in how openly someone shows their feelings. The context or environment can also dictate emotional expression, so both adults and children can be open, but in different ways and situations.