You can abstract it. My mommy is a dancer, or my mommy is an actor and she does shows for one grownup at a time.

It's really not difficult to find a true statement that is also not the whole truth. It's not like my kid understands what I do for a living beyond the company name I work for. Abstraction is fine and normal.

Well, he asked for truth, not lying. What you're doing is lying. Which can be fine but let's not invent new names for lying, it already has enough of them.

It's not lying.

Am I lying to my kid when I say I "work with computers"? No, it's an abstraction. My 8 year old doesn't need to understand what a datacenter is, but just because I elide details doesn't mean I'm lying to them.