On the phone so won’t find it now but (on Django-developers, if not again here) there have been various threads about adding support for date inputs.
The consensus has been that each time it’s been looked at the cross browser support wasn’t there, and we weren’t sure about handling migrations for folks who’ve already done other things. But pending the first improving, likely the second could be addressed. (So question is largely, when, if ever, is it good enough? E.g. Is input type="date" ready for use in accessible websites? - Hassell Inclusion)
HTH.