It is something that can only be answered by time. But for some, it looks like a good possibility. Here are some ways that steemit can be your main job and not an additional income source, hopefully you succeed and become successful people in steemit
Invest
It's not unique to steemit, or even cryptocurrency really. Whenever new stocks are available, those who buy early can earn enough money. But of course this option involves the initial capital to see great results and will take a long time
Write
The main way to earn an income is to write interesting articles to get high voting. This is something that can really be done by anyone and anyone can make it viral here. I know that it sounds like a burden after you work hard at the post just to see it sink into the blockchain ranks. But it happened. Many of these people who make money from their posts are just random people coming at the right time or telling the true story. And yes some of them have breasts, because I have read people complaining about it, but it is not a requirement. I do not have breasts (well when I'm in my debtsable weight) and I do not know anyone here and see how much money this post generates (that's your cue to raise the rank of this post).
Living Off Interest and Steem
I thought about it a few days ago. If you can build enough steam strength and if steem is worth enough money, you can turn it off and have a weekly paycheck. That's one of the benefits of your 104 strength payment for two years. You can have a fixed salary and (I think) collect more steam from the steam there. It will help many people, honestly, bad with money.
Time will show us how well an average user can generate on Steemit but as I said, it looks positive
hope you are happy to be in steemit and have to work hard thanks