Why can't I buy Beam on Coinbase?

Could you please explain to me why I'm unable to purchase Beam tokens on Coinbase? I've been hearing a lot about Beam's potential and I'm eager to add it to my portfolio. Is it due to regulatory issues, or does Coinbase simply not support Beam at this time? If it's a matter of regulation, do you have any insights on when this might change? Alternatively, if Coinbase doesn't support it, could you recommend any other reliable platforms where I can safely purchase Beam? Thank you for your assistance in navigating this cryptocurrency landscape.