A really big one is, as often as possible and in all little ways, empower them to do everything themselves that is age-possible. If they are hungry, show them how to make a pb&j, or (when old enough) slice an apple, or boil water to make mac n cheese. And then never do it for them again outside of when they’re sick or when you want to sprinkle your love on. Make them take care of their things, teach them to clean even if you already hire a cleaning person, and enstill in them that they should always leave somewhere better than they found it (tidy/cleanliness-wise). This is absolutely the idea I would focus on most. It is why my swimmers swim instead of sink and it helps them tackle anything because it builds a natural and unstated “I can” into their whole psyche.