I want to buy BNB

I’m trying to swap some BNB for other tokens using PancakeSwap, but I’ve been having trouble finding a way to purchase BNB. It appears that restrictions in the US might be causing the issue, but I’m not sure if that’s the only reason. I’ve tried looking into it, but I haven’t been able to find any detailed information explaining why I’m unable to buy BNB. Am I missing something important, or are there specific regulations in place that I should be aware of? Any insights or advice on how to resolve this situation would be appreciated.