Alternative date picker for date form type?

I'm interested in using a better date picker than the standard one (well actually, the standard one is great for dates near to today's date, but for Date of Birth it's a bit slow to scroll all the years (I must be old!).

So hopefully I'll be able to use a datepicker like this:
https://jqueryui.com/datepicker/#inline

There is some clues here:
https://www.drupal.org/project/datepicker --- but this seems to not be supported in Drupal 8?

Here's my code:

$date = '1970-01-01';
$form['date_of_birth'] = array(
   '#type' => 'date',
   '#title' => t('Date of Birth'),
   '#default_value' => $date
);

It looks like the date picker module isn't ready for Drupal 8 yet?