Expected behavior
Datepicker should be opened on 'focus' but also on 'click'

Actual behavior
If I have onFocus and onClick listeners for openning datePicker it will work on FOCUS but it will not work on CLICK. I need this in order to open automatically DatePicker on TAB (keyboard or mobile keyboard). Is there a different way to achieve this? Basically, it needs to work on click and also on tab.

Resources (screenshots, code snippets etc.)
const datepickerParent = document.querySelector('.datepicker-parent');
const datePicker = new mdb.Datepicker(datepickerParent, {
max: maxParentDate,
startDate: startParentDate,
format: 'dd. mmmm yyyy.',
});

datePicker.open();