I don't think your mother would leave him if he took the wig off, if she did, no offence, but what kind of relationship is that? Based on hair? After all these years you would think they would have a proper bond and history. Are you sure you're not being paranoid? Otherwise I feel bad for your father. In fact I think those in long term relationships will take that wig off in front of their partner.
Also I have never insulted your transplant outcome on your thread and others should be diplomatic. I always say whatever brings you peace of mind in this battle, opt for that, even if it's shave.
I feel you are quick to bring down wigs and dismiss them, that's the crux of the issue, you don't like it but others may. Now I have never had one but it seems many people do wear them and lead a happy life. So it does warrant mentioning, especially to someone like OP who either has to shave/paper thin transplant or wig. These are his options and he should know that. I am not a fan of hair tattoos like smp and find it a ridiculous concept especially when explaining to a girl or even mates "I don't have hair so got hair tattoos drawn on to make myself feel better" but I accept smp and concealers as an option. Do you see a wig as "cheating"?
In your position what would I do? I don't know your donor density but I would have filled my back and middle then a comb over hanging forward a bit. If that was not possible, I would shave it clean or possibly try a wig and see how I feel psychologically.
We should be open minded. You're right in regards to differences in Norwood status, I think it works both ways though, some higher norwoods have forgotten the benefit of sporting a hairstyle and how a wig allows that.
I also think the jury is out on whether higher norwoods really prefer sporting a thin buzz cut to a shave. Perhaps even that is not as clear cut as it was for you, especially with bald people in real life.
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I must agree with Fred here. A wig will never be a viable solution for hair loss, but unfortunately to people like myself, is the only option.
The fact you say it's the only option open to you now, shows it is a solution nevertheless. That's my point. It allows people too far gone to lead a better "normal" life if they wish. They will always be around unless there is a cure that everyone can access.