If you are trading with a trusted seller, there is no risk unless you go face-to-face. Dealing face-to-face is always risky when it's Bitcoin. Otherwise, the safest money transaction is Bitcoin. You don't need to carry cash or a pocket book to send money somewhere. For investment, Bitcoin is also safe if you can hold your funds in a non-custodial wallet to which only you have access. However, due to scammers, it is very important to know with whom you are dealing. Also, you have to protect your privacy. Don't let others know how much Bitcoin you are holding.
Digital cash is doing the same, I do not know what makes OP think that only Bitcoin can be sent without physical interaction. The only advantage of Bitcoin is its fast transaction when doing cross border transfers assuming that the network is not congested. Yes, Bitcoin is decentralized and we have the freedom to send transactions without third-party intervention but at a cost of self-responsibility if something wrong happens along the transaction.
When buying tangible things with Bitcoin, even though the buyer and seller do not meet face to face, the buyer has to give his information for the seller to know where to ship the item. it does not look so different in using cash to purchase items online, IMO.
So @OP what really is the advantage of Bitcoin? I only see some things like protection from inflation, borderless transfers, and decentralization, probably a good investment if one has the patience to wait and is knowledgeable about market timing. But if one uses Bitcoin to purchase an item, I do not think it differs from using fiat currency. except being at a disadvantage when you are the buyer and an advantage if you are the seller due to an irreversible transaction once confirmed.