I went to a friend's print shop today. We've been friends for a while now, business associates even longer, and it's a small mom-and-pop print shop with two presses that I go to for all my small to mid-format printing needs. I'm a graphic designer, and sometimes I need a brochure, business cards or some smaller posters done. The business is well regarded, is cashflow-positive and has a strong local presence within my city.

However, said friend - the owner and sole employee - is getting tired of the work. They want to retire, in around two or three years, and that would mean closing down the shop. They're running it as the third owner now, and previous owners have been running it since 1970. So, I joked about maybe taking it over one day - and my friend was immediately interested. They said that that would take a load off their mind, and that it would be nice to have someone like me continue the legacy of this established store.

And, well, I gotta be honest with you, I really want to do it. The work is something I've done before (digital print, prepress, cut and finish printed products, printer maintenance and first and foremost graphic design), and my actual education was in graphic design. I'd be able to do both the craft of print production and offer more services like brand and web design to my prospective clients (which would be a value add to existing and new customers).

The thing is, I've never run a business. I'm not a business person, and I don't know the first thing about it. I know about how to deal with customers, how to budget my time and money, and how to work in an organised and precise manner, but I've never been a manager or a boss.

So, I guess, this is my question to the Tildesian hive mind: Is it doable? Is owning a business really that difficult if you know how to do the actual day-to-day operations well? Should I leave the safety of wage labour and try to make something of my own? Has any of you taken over a business or founded one, and if so, what are things I should know?

PS: I'm 25 years old and am from Central Europe.

I know if I posted that on Reddit, all the top answers would be something like "Money"or "It lets me survive" but I'm looking for something deeper than that.

I'm a teacher and school just started where I lived and I realize how much freedom the job gives me. I can considerably modify how my day will go as long as the students learn the curriculum. I love that freedom.

I also love the human nature of it. I get to know and see 100 kids develop every year, plus, I teach juniors and I've had a lot of my last year students stop by me to say hello and talk about their summer or their current teachers. It's fun having all these random positive conversations every day.

I get to learn a lot about people and about me. I love that growth.

What about you?

For example, I'm handy with a lot of stuff. I could change an outlet in the wall no problem. But if asked by an electrician what gauge Romex is safe for what amperage, or what color direct bury Romex is, I'd have no idea (from the knowledge I walk around with day to day).

I'm curious what other random facts people may know from their line of work that quality them as more knowledgeable than your average goose joe. Or to paraphrase, walking around knowledge people wouldn't know unless they googled it, or worked/were very knowledgeable in your field. And how many of them I (or others) might know.

To start from my job:

Q: Under what circumstances would one want to withhold the administration of vasopressors (Epinephrine) in a cardiac arrest?

A: