Time for me to chime in.
We started as a family early in the year, taking our OW class and pool sessions in January in prep for a trip to St. Lucia in late February where we did our referral dives. Our son was 17 at the time. The whole idea was my wife's, who had spent a summer in Grenada over 30 years ago, diving daily with a reef ecology program.
I wasn't terribly keen on the idea, but went along for family "harmony" - good thing I did!
We had no intention of doing anything other than "resort" diving, but subsequently my son and I started diving back at home thanks to an invitation from an old friend.
Things continued from there and my son and I have completed our AOW and Dry Suit specialties. I've completed Nitrox, and he will do that in January - we are both doing the Ice Diving specialty in February. This is the one "sport" (hobby?) that he and I are on a equal footing. I can't keep up with him when we ski, off-road motorcycle, or climb. When we dive together, we have a lot of fun. As a buddy, he needs to stick to me like glue - his mother would have a fit if either of us came back without the other! His navigation sucks - another reason he stays close.
My wife did a few dives up here, but decided that she was a "warm weather/water look at the colourfull fish" diver - none of this "low vis, cold water, look at the trout" diving for her.
We'll all dive as a family again in Curacao in March - then again maybe not - my son and I are doing a wreck specialty while my wife looks at the fish!