Hi
@jodeci888
Both my children were certified to dive at age 12. I've been diving with my son for 26 years now, he's just 10 years younger than you. I have been diving with my daughter for just 22 years.
Both have always been responsible for monitoring their own gas and were very good at it, from the beginning. It became apparent early in our diving together that their gas consumption was as good as mine.
I understand that it might be tempting to take advantage of technology to monitor your daughter's gas. I would suggest resisting that urge and making sure your daughter simply understands her responsibility to dive. I believe that would enhance the diving experience for both of you.
Best of luck, nothing like diving with your family