org-mouse
is a built-in package for Org mode that lets one do some handy things using the mouse in Org files. Things like checking checkboxes and toggling subtrees.
(use-package org-mouse
:after org)
Or just (require 'org-mouse)
Clicking in [ ] Do this thing
to complete it is easier than navigating to the line and hitting C-c C-c
for each item.
There’s no shame in using a mouse, even in Emacs. I sometimes prefer to sit back, grab the mouse, and click things.