Every time I try to download Disney+ app it says it is not available in my country/region.

Set the date and time

By default, the date and time, visible on the Lock screen, are set automatically based on your location. If they’re incorrect, you can adjust them.

1. Go to Settings  > General > Date & Time.
2. Turn on either of the following:

• • Set Automatically: iPad gets the correct time over the network and updates it for the time zone you’re in. Some networks don’t support network time, so in some regions iPad may not be able to automatically determine the local time.
  • 24-Hour Time: (not available in all regions) iPad displays the hours from 0 to 23.

To change the default date and time, turn off Set Automatically, then change the date and time displayed.

Set the language and region

1. Go to Settings  > General > Language & Region.
2. Set the following:

• • The language for iPad
  • The region
  • The calendar format
  • The temperature unit (Celsius or Fahrenheit)

1. To add a keyboard for another language, go to Settings > General > Keyboard > Keyboards, then tap Add New Keyboard.
2. See Add or change keyboards on iPad.

Restart the iPad and attempt again.

You can find the article here: https://support.apple.com/guide/ipad/change-common-settings-ipad79520415/ipados

Disney+ support: https://help.disneyplus.com/csp?id=csp_article_content&sys_kb_id=969c37ecdbcd04d03c0cf158bf9619ee