Start “home economics” school with them. Laundry, cleaning, cooking, how to change a diaper, comfort a baby, soothe a toddler, what's involved in caring for pets, budgeting for food, keeping track of maintenance schedules for humans, pets, cars and machines. Engage with guests, be a good host, etc. Know when and how to tell someone to GTFO of the house (racist or misogynistic speech, etc.) Every kid needs to learn the art and science of home management. Look for and point out examples in books and movies of good home science skills.
Read (or listen to) The Greatest Generation by Tom Brokaw together as a family. It's broken up into small vignettes so it's easy to get through bit by bit.
Start the tradition of First Sunday dinners. On the first Sunday of the month, have a "mini-holiday" dinner. Invite family, friends. Use the nice dishes, make a big meal. Celebrate family.
The problems with pornography: When you’re young and have yet formed a basis for healthy and mutually satisfying sexual relationships, your brain doesn’t know what to do with that input. It becomes part of your brain, imprinted as normal or the way sex should be. When you’re older, the brain can see something that’s outrageous and recognize it and discard it. Also it’s incredibly misogynistic, will do horrible things for the way you see women. While some is fairly harmless and totally normal, even too much of a good thing is a bad thing. Too much of a bad thing is disastrous.
Keep in mind the human tendency (rightly or wrongly) to think “how it ends is how it was”.
Could be a work shift, a class, a relationship, etc. try to end on a good note.
Institute “Family Night” a screen-free night of games and fun and togetherness. Can use these times for conversations about things you want to address / teach. Maybe make theme nights and build around a lesson so it’s fun and enjoyable.
Continue through school years.
People will always have complicated feelings about the people they once loved. We’re human beings, we can’t expect emotions to be like an on/off switch. Complicated feelings/mixed emotions regarding an ex is to be expected. What’s important is what they decide.