Look at the way people are being scammed and robbed in broad day light just because crypto is embedded in anonymity and decentralization. I think we've all had it to the peak, how about we have some level of regulation with the activities in the crypto industry.
I don't think scamming has anything to do with decentralization. In fact, it's much easier for a centralized entity to scam its users. Anonymity makes is problematic to identify the scammers, but decentralization doesn't have anything to do with it.
As for regulations, a lot of countries have already imposed some. Crypto exchanges often have to keep record of transactions, identify their customers, report to the authorities, prevent suspicious activity etc. I think it is justified when we are talking about big amounts of money (thousands of dollars, at least), but not when people want to spend a couple of hundreds and must make all those photos to pass the KYC procedure.