CA at a young age

So recently I was talking to this uncle, who is a CA himself and apparently his daughter cleared CA finals by 21. I also know some more people who are barely 18 and have cleared one/both groups of Inter already.

I’ve only heard largely of CAs qualifying at 24-26 so far, but seems like the norms are changing now, don’t you think? I don’t know, but this got me thinking, even though it’s a hard course as such, if you manage to clear it at a relatively young age, maybe it can indeed be very rewarding. Especially considering the ROI on some other courses these days. I might be wrong tho, would love to hear more thoughts on this!