First off, welcome to the forum.  I'm sure you'll find it interesting to say the least, and there is a lot of great information and conversation to be had here.  And I can relate to hearing about bitcoin well before I really got into it, and I only wish I'd bought some earlier.

BNB as a coin is pretty OK if you ask me, though I don't own any right now.  One of the positive things it has going for it is its link to Binance (obviously), so I think as long as Binance does OK BNB will do all right as well.  But I've seen any number of exchanges bite the dust over the years, and none of them were ever really expected to either go out of business, get hacked to death, or pull an exit scam.  I guess what I'm getting at is that you never know.  Binance seems to be one of the more legitimate exchanges, but things could go wrong and that might affect the popularity of BNB.

Binance did survive a major hack, so that ought to give people confidence, but again nothing is a sure thing.