No iPad has ever supported a mouse, and there is no indication that any iOS device ever will. Apple pulled its head out back in the early 2000’s when it began designing iOS and the first iOS devices and said - no mouse, touch only.

Note that you can alternatively select Forget This Device, but doing so means you'll have to manually re-pair your mouse or trackpad if you want to use it again with your ‌iPad‌. A mouse was never part of the equation and remains clearly not part of the equation. Tap or click the Info button (the encircled 'i' icon) next to your mouse or trackpad, which will be listed under My Devices.How to Disconnect a Mouse or Trackpad From Your iPad Once connected, your input device will automatically appear in the My Devices list as long as it's powered on and in close proximity. Tap its name to connect it to your ‌iPad‌. Your trackpad or mouse should appear in Bluetooth settings under Other Devices.Turn on your trackpad or mouse, then make sure it's in pairing mode and near your ‌iPad‌.Now, in iOS 13.4, you can connect your mouse directly in. Launch the Settings app on your ‌iPad‌. In the previous version of iOS 13, you had to connect your mouse in the Accessibility settings.How to Connect a Mouse or Trackpad to Your iPad The update adds support for Magic Mouse, Magic Mouse 2, Magic Trackpad, Magic Trackpad 2, and third-party USB and Bluetooth mouse options. You can check that your device has been updated to iPadOS 13.4 by launching the Settings app and going to General -> Software Update. To learn more about how to use a connected mouse or trackpad with ‌iPad‌, click here.

This article explains how to connect your chosen input device from your iPad.

With the release of iPadOS 13.4, Apple brought official Bluetooth mouse and trackpad support to its iPads.

Use a mouse with ipad pro