In my limited experience (I found a succulent leaf on the street) the only skill one would need is to remind themselves to water it, like once a week maybe. All you have to do is drop it into a pot with some soil and water it every now and then. Maybe some succulents are more finicky though. ¯\_(ツ)_/¯

*Also, it's pretty cool to watch. Like the original leaf slowly shrinks and dries out as the new leaves are formed.