My reasoning was quite different, At the Time I came home in 95’ I had been a soldier for a long time, I took my oldest son and youngest daughter due to challenges they had with their Mother and challenges she was facing at the time. I told them when we moved in to our new home together, my son was 6 my daughter was 4.
I told them simply, Your dad has been a soldier for a long time (7 years with the CAV) I said; “I know nothing about being a dad or a father”, but I do know how to be a decent Person and I can teach you this. I will never lie to you or desert you, and we will all ways be a family.
I also told them I will never touch, spank or hit you unless, you do one of to things (1) Steal from me ( I have always been told and brought to believe you never steal from family or mates) (Stealing is wrong enough but from loved ones was heinous.) and never to lie to me. My ex was a horrible lair and that situation scared me for life. I hate lies and deceit with a passion that borders on fanatical. I believe the only good secret is birthdays, surprises and presents. With those two things in mind, we’ll also work things out peacefully. And to this day I have never had to ask my children more than twice if they we’re lying. Thought I can usually tell cuz If I feel I have to ask a 2nd time I ask they are beyond a arms length away, LOL
I was fortunate, out of 4 children only my daughter (youngest) asked me about Santa (Their mother was big on that for whatever reason) and My youngest came to me and asked me is he real, and I had to say , NO. Which she was very mad about, being lied to believing it was true when it wasn’t. But to this day when she hears things she will call me or ask me about them. And If I do not know we will actually look into it together. (That’s kind fun

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It made me sad to have to tell her, but I did give my word never to lie to them. (This has been a sticky spot form time to time.) as you have to word things right and I had to explain my reputation and later carefully talk about my marriage to their mother which was very bitter. (So I did not let my feelings drain on to the children for things they needn’t know about ( But I did answer truthfully or explained I would tell them when They were old enough to understand) or look Like I was bashing her which was hard from time to time, but doable.)
But I never regretted not telling the truth. I find I can remember things easier if I tell the truth. So I do not know whether its acceptable to some people, But it wasn’t for us. And it has served us well even when you really do not want to hear the truth!
So from Santa clause; to their mothers challenges with alcohol; to how not so nice their mother and I treated each other, I have been honest and still have wonderful relationships with all my children and they still maintain decent relationships with their mother which is good.
All children need are Mothers and Fathers and loving families and honesty.