I really wouldn't teach my child to lie.
I would agree with you in general Trifleorbust but I find the whole issue of truth much more complicated.
I am a very truthful person. I clearly remember resolving not to lie (much, that is. Everybody lies and if people say they don't, they're lying).
I was eight and spun my friend a tall tale that was harmless but made me seem much more exciting. My friend believed me and mentioned it to my mum in front of me. I was willing my mum to go along with it but she simply said: 'I don't think that happened the way Limited said' and then she changed the subject.
That was a good lesson. I found it so excruciatingly embarrassing that I didn't want to go through it again.
The irony is that my mum told lies all the time. Not because she was evil, but because she tried to spare people's feelings or get out of a tricky situation. She was a people pleaser, as many people are.
It would get her in horrible pickles. I found it quite funny to see the knots she tied herself into and would make sympathetic noises but think: 'Sorry, mum. You're on your own. I'm not going to dob you in, but I'm not going to lie for you.'
I did love her and she would always lie with the best of intentions and if those lies ended up hurting her it didn't give me joy.
But the truth is that while many people say they admire truthfulness, in reality, being a George Washington type invariably makes you extremely unpopular. In other words, many people are lying when they say they want the truth.
Truthfulness makes many people very uncomfortable if it provokes confrontation - how many people say they hate confrontation? You see it in MN posts every day. That makes them hostile to a truth teller.
I'm not talking about tactlessness; I'm talking about the times when people won't go along with lies. This isn't a moral stance; more a practical one. I'm happy to lie overtly or by omission when I judge it will do the least harm and be the easiest course. But when I can see the lie isn't going to work and will get us all into more elaborate lies and possibly big trouble, I'm going to knock it on the head straight away.
Anyway, that's a long-winded way of saying that if I could trust a six year old not to pipe up on the way into the zoo, I would. But if not, I'd cough up. If that meant I swerved the gift shop and its massively overpriced tat on the way out, then that's a matter for the company and their business model.