Why do you need to provide bank flow when you apply for a Thai tourist visa in Laos?

Because this is a necessary step for a visa.

The daily account required for a visa is the transaction details of the usual bank card. To apply for an individual tourist visa, you must provide an official letter from the reception unit; If there is no reception unit, economic proof (cash, traveler's checks, money orders, cash cards, etc. , calculated at 100 USD per day) that can guarantee the living expenses in China must be provided.

Group tourist visa applications will not be accepted in principle. Due to force majeure, you can apply for a zero-time group visa with the validity corresponding to the actual situation, and you can only apply once, and you must provide an official letter from the reception unit.