Select

Keyboard accessibility is very important. See for yourself why the first and third example works and the second won't. Example 2 fails on WCAG Succes Criterion 3.2.2.

Example 1

Use Tab until the focus is on year and use the down-arrow key to select any year.

You selected the following year:

Example 2

Use Tab until the focus is on year and use the down-arrow key to select 2019.

You selected the following year:

Example 3

Use Tab until the focus is on year and use the down-arrow key to select 2019 and submit Year #3.

You selected the following year: