New feature motivation
I would like to make it clear for the user that date picker is not clearable and avoid checking for null values in the code.
New feature description
Date picker with required property should not be clearable.
- "clear symbol" icon should disappear when attribute "required" is added to the input.
Without required

Required

- Date should not be changed or cleared when user hits backspace or uses "clear" on native web android/ios date picker.
New feature implementation
I could even try and create a PR if you greenlight the idea.