I would agree with you, but still think people should own 1 Bitcoin if they're able.

I don't think people should be focused on just Bitcoin though. It's a great addition to a portfolio, but you don't want to own all Bitcoin and no stocks for example. I know with younger folks it is sometimes easier to get into crypto than stocks, but the earlier you build a diversified portfolio, the more you will learn, and the better off you will be.
Obviously, the more the better. I just know a lot of people personally won't get into Bitcoin now, because they feel out priced, simply because they can't justify or afford to buy one Bitcoin. Even though I've explained it a million times, and torn my hair out in the process, they just can't seem to get over that mental block.
Yeah, despite Bitcoin being complex, I think stocks are even harder to understand, and I can see the appeal that Bitcoin has from that perspective as well as the core principles of Bitcoin. Bitcoin's almost like a catch them all.
Personally, I'm not as comfortable investing in stocks than I'm with Bitcoin. Stocks are highly dependant on how the company performs usually, whereas there's a lot of factors in that, which are wildly unpredictable, especially when it comes to the reputation of the company, and the people running it. Although, I guess to a certain degree the same could be argued for Bitcoin, though Bitcoin being decentralised there's at least a bit of mitigation to prevent that.
Anyway, by all means make one whole Bitcoin your target, but don't make it prevent you from getting into Bitcoin if you can't afford it. Most people can't afford that amount for an investment, especially something you might not be completely sold with (that usually takes a year or two).