Sure - but you've got to start somewhere. There are a lot of people who aren't experienced sys admins who are buying raspberry pis or arduinos and they are probably really good candidates for self-hosting some of their services. I was surprised to find my neighbor (who's a PM with a physical security system company) trying to do something with chatGPT, at first I was a little dismissive because i figured she was just typing prompts into the website, but in reality she was having issues with the python bindings and getting her virtual environments straight. If you can get to that point, you can surely self host stuff.

I run git locally for some of my projects and that was trivial to set up - I think anyone who's used github would have comparable skills to self host gogs or gitea.

Certainly it's somewhat expensive, but people spend a lot of cloud hosted services too. I'm sure in my house we're dropping over $100/month on dropbox, chatgpt, google, adobe and probably a half-dozen smaller ones.

I wonder what the market would be for such a solution. Make a custom raspberry pi like small server that has a self hosted website with a decent UI to setup most solutions like email, nas, pihole, and maybe a media server. Sell the easy setup to those who can't be bothered, while still being open source and promoting Foss alternatives. I'm sure you could even sell different server tiers for power users as well who don't want to be bothered with it. Then you could always sell a security service in a sense that will have people at the organization maintaining and updating the packages on the server os for that identified hardware. Then anyone who is inclined could set this up on their own so long as they have the skills to maintain their security, otherwise for basically the same cost as most subscriptions you could be able to self host email, Nas, media and an ad blocker network wide. As long as the ui experience setting this up is just as polished as simple as setting up a Gmail account I feel like this could do pretty well.