You're exactly right and that's what I meant. Updating the parent theme or not makes no difference, since my store is running on the customized child them. I just wonder if I should forget about updating the parent theme at all, cuz it may deprecate certain functions being used in the child theme.Why do you have a child theme ? What update do you want to do there?
You created and child theme (i believe) in the first place for you can customize your theme, without the updating of the parent theme effect the change in your child theme.
No.Should we update the Child Theme as well?
No. Update it.I just wonder if I should forget about updating the parent theme at all
Do this.Do also a google search why you have to do it.
Thanks for your advice. I googled and finally learned more about child theme here: https://www.wpbeginner.com/beginners-guide/wordpress-child-theme-pros-cons/No.
No. Update it.
Do this.
It appears you do not understand how child themes work.