I don't feel like most people even know self-hosting is an option.

I wasn't aware of how most ingredients were made and what effect they had to my body. Once I learnt I started being way more careful with how I source food.

Same goes with technology: people don't understand that what they upload can be used against them or arbitrarily taken away from them, what they buy can be removed, that companies spy and abuse them. Once they do, many look into self-hosting or at least other alternatives from big tech. I've met many who want to self-host, but they lack the technical literacy to do so.