What you don't know is how many celebrities also inherited a brand but did not or could not make a successful business out of it.

What you imply is that by having a large seed, succeeds was guaranteed.

My take is that if somebody else getting the same inheritance wasn't able to achieve success, then it counts as self made for the one that did succeed (with said inheritance).

I just don’t find this a useful comparison for nearly anyone interested in becoming a self-made person, hoping to draw inspiration. I’m sorry, but growing up in a very wealthy family, inheriting a large number of followers, and starting with a huge amount of influence… that’s not something most people will have. Beyond that, you have a massive, massive cushion to take risks, to try and fail, and to try different business models. And on top of that, you are taught directly from your successful parents how to start these lifestyle businesses. These are all crucial parts of success that most people don’t have access to.

It’s a lot more useful and interesting to draw the line earlier.

> My take is that if somebody else getting the same inheritance wasn't able to achieve success, then it counts as self made for the one that did succeed (with said inheritance).

That just redefines "self-made" to mean anyone that succeeded, which isn't very useful.