I believe this is a fallacy. It's like the old "If you have to ask how much it costs, you can't afford it." It's glib nonsense. Maybe you've got a million dollars to spend on an emerald necklace for your paramour. You go to Tiffany's and see a very nice one. But you don't know whether it costs one million or ten million. You have to ask. This does not mean you cannot afford it; it just means you don't know whether or not it fits into your budget.
In the case of FSD, there are many unknowns: When will there actually be something there? What will it do? Will it work everywhere you'd have been able to drive yourself, or will there be a lot of areas it cannot handle? How often will you have to intervene? Will today's car ever be able to reach L5? With so many unknowns, it makes sense for a person to ask advice. There are people who can afford it, but there's always an opportunity cost: "Should I buy FSD or take my family to Hawai'i? My daughter would love to see the whales but my son would complain the whole way. If FSD becomes a reality, I could work an additional 250 hours a year while my car drives the kids to school and soccer practice and on that we could take that vacation."* So many unknowns.
Yes, it makes sense to ask for advice if you don't have strong opinions already.
* Hypothetical person asking. I already live in Hawai'i. It's whale soup out there right now. Anybody reading this, if you're on Maui or coming to Maui, PM me and I'll tell you how you can come paddling with one of the canoe clubs and see whales, while they're here, which is more or less another month. Or come paddling any time of year. Or you could buy FSD instead and hope they actually make it happen before your car wears out.