Critically: I give them my full attention.
I could choose to spend all that mental effort on myself, but I choose to spend it on them. That’s as good a demonstration of love as any, in my book anyway.
Edit: no offence taken! I didn’t interpret it that way at all.
Show mostly by example, not by direct mentoring.
What rich education and various cultures for 6-year-olds (or less)? That is simply irrelevant at that age and logistics of it just makes you hate everything. Do you even take your kids to dozen of arbitrary chosen classes?
Tone it down, everybody will feel better and you won't have to fake it. Happy parent is more important for family than robo parent.
My family and friends are multi-cultural so they’re naturally exposed to several cultures, for example. It’s also important to my wife and I as the world itself is multi-cultural, so having an appreciation that different people live their lives differently is important. We lead by example simply by living in a multi-cultural life and embracing it.
Take that same approach and apply it across the rest of the points I made. Nothing is forced, I promise.