1. Nestle products (I am bad at explaining why, and would just again end up researching their shit for 2 hours)
2. Alcoholic drinks - kills braincells, and I’d prefer to keep both
3. Cigarettes or vapes
4. Closed-source software licenses (for personal use)
5. Digital content that does not come on physical media
6. Hardware with license-unlockable components (e.g. some networking equipment may limit throughput unless you pay more)

At the same time?

Is this a recipe?

Why cauliflower???

Ah, I see. Never mind.

I mean, it’s recommended to. Diversification, right?

But that’s besides the point. I’m just not sure what you mean by shareholders here. They really come in those two types: individuals, and funds that issue their own shares which you can then buy. If you’re fine with individuals holding shares, I don’t really see why you’d have a problem with the funds.