There is a disturbing trend I’ve been noticing when taking over websites from previous developers: No Child Theme. A child theme is essential because it allows you to make edits to the look and feel and functionality of the website without losing them on a theme update. Themes must be updated to keep them secure. Imagine if you updated your theme and the customization that took 10 hours of your developers time (and your money) went away? Poof! When hiring a WordPress developer please make sure that they are using child themes and if they show any hesitation to what you are saying run in the other direction!