Why can't there be a rainbow in the concert?

The reason why some concerts do not allow rainbow patterns may be to avoid infringement and ensure the safety of the audience. At the same time, the rainbow pattern may be regarded as a symbol of LGBTQIA+, so some concerts may prohibit the use of such patterns or words to avoid offending some sensitive issues of the audience or related organizations.

However, this does not mean that all concerts or activities are prohibited from using rainbow patterns or related vocabulary. In many cases, as long as the use of patterns or words does not infringe on the rights and interests of others and conforms to the theme or atmosphere of the activity, it is usually acceptable.

Therefore, the specific regulations will vary according to the nature of the concert or event, the organizer and relevant laws and regulations. If you want to know more about the specific provisions of a concert or activity, it is recommended to contact the organizer directly or refer to the relevant official announcement.