Applying for a child visa for UK requires documentation that establishes parental or custodial responsibility. This visa allows minors to join family members legally residing in the UK. Essential documents include proof of the parent’s UK status, financial evidence, and the child’s identification. Many parents find consulting a visa professional helpful for navigating requirements. Children under 18 qualify, provided they’re not living independently. This visa category ensures family unity and allows children to access education and healthcare during their stay.