Also I think sometimes children will realize a logic gap there and so they will try this funny trickery where they will make statements like these, which technically are true, but imply something totally otherwise to others. Which I find very interesting and kind of speaks to ability and inventiveness of children to think outside the box. Parents may find it annoying or dismiss it, but I think it is great.

vacuous truths are indeed a useful form of half-truth if you are aiming to deceive.

> Edit: Logically speaking, the following two are equivalent:

Depends on your logical system! There are temporal logics to allow one to capture logically the difference between the two.