Yes, BTC should definitely change and offer some kind of protection for both buyers and sellers.
I don't think that is going to happen anytime soon. Something like this is against the most important concepts of Bitcoin, which is designated to be a decentralized currency.
Providing protection for both buyers and sellers is not the responsibility of Bitcoin. The marketplaces should do that.
Well, then I think we have a major issue cause the number of scammers will be growing and the number of honest people will be reducing. This is exactly what s going on right now. Take a look at cloud mining for example. On every legit cloud mining operation, there s at least 20 ponzies and the new ones keep on emerging every day. Is this decentralization we want? Scammers at every corner? No, thank you, I didn't sigh up for this.
Also, you cannot teach people to select the good ones only. I ve been reading about people who got scammed once and they keep investing into another potential scammy operations. Until one day they say, fck this, I am out.