Given the task definition and input, reply with output. Given a travel related situation, and given a specific question about the situation, summarize the question into a title

I share my passport with my daughters. It means that they always have to travel with me. It is an EU passport, so we can access many countries without visa requirements.

But in case visa is required, do I need just 1 visa for all, or do I need a separate visa sheet for each.
Do you need seperate visa for your children if they are registered in your passport