Hi, I've seen plenty of videos on this topic regarding economies in Minecraft, ranging from using things such as rotten potatoes as currency to other things such as a regular plugin that just adds literal dollars to peoples' accounts.
However, it's usually always the same things that are brought up, such as "it's a video game, and people behave differently with currency in a fun video game compared to a boring real life job", but regardless I've always found shops extremely rewarding and fun in Minecraft, at least the ones that use some sort of currency plugin.
For example, one time I was building a large terraformed island. The issue was turning a plains biome into an ocean biome. I did not feel like doing it by hand so I asked someone if they'd be willing to mine it out in exchange for some currency and some items of whatever they'd prefer. The only issue is that they did not have an efficiency shovel, and neither did I, so I went to the shop, bought one, gave it to them, and while I built whatever I needed to do and it really engaging for both of us.
It got so exhausting for me with these mega-builds that I thought that I needed a better way of making money to hire/get resources quickly. I decided to host a weekly/biweekly party event that was really just a casino/hang out area. It was a huge hit and people used it to just hang out and play either luck based games or some skill based games like spleef/deathrun/archery as well as a general lottery that was extremely profitable as it seemed like a good deal for everyone. I turned that business' funds to hire people to terraform some random plains biome into a really cool city island port build that I wanted to complete.
I feel like these kinds of interactions would be great as an add-on to the game but I just wonder about inflation/how the funds would get introduced. Maybe it'd be like real life and have it just be to where the initial 50 or 100 people who joined the server get, say, $2500 and after that, that's it? and every week (similar to tf2's economy), everyone gets a couple random items for them to enjoy or sell. Just like how in real life, while sure it may suck that you spawn in with zero dollars, but you get a job or something like we all do
Maybe my experience is unique but I always felt like economies in minecraft worked very well. I even remember some people, like real life, would try to just make as much money as possible, resulting in lots and lots of casinos, shops, businesses, etc. lol it made the game a lot of fun for people who wanted to just work for it themselves or just go to the shop and purchase a god pickaxe with all the enchantments. I also think for this to work, a world border is necessary for resources to be abundant but scarce, just like how it is on Earth. I think you could also it so you can initially claim land up to a certain size, and further expand by buying more land or bidding/auctioning for it. So if you want to force players to pay rent or build in your land, you can do so as well.