There is no absolute superiority or inferiority between dialects and standard languages in terms of formality. It mainly depends on the occasion and cultural background of use. Here are some considerations: 1. **Purpose and occasion**: Standard languages are usually used in formal occasions (such as academia, government, media, etc.), while dialects are more often used in daily life, family and communication between friends. In formal occasions, standard languages are more widely understood and are therefore considered more formal. 2. **Cultural identity**: Dialects often carry local culture and history, and can express regional characteristics and identity. In some cases, the use of dialects can also be seen as a symbol of culture and recognition of local traditions. 3. **Social status**: In certain social environments, standard languages may be seen as more authoritative and prestigious. At the same time, dialects may sometimes be prejudiced because they are considered less "formal". 4. **Language diversity**: Languages themselves are diverse, and dialects can also be used to express complex thoughts and emotions. They can be very effective in specific social circles and have their own formality. In summary, dialects are not always less formal than standard languages. Their formality and applicability depend on the specific language environment and social and cultural background.