Honestly, using crypto doesn't mean a safer community. We have lots of news lately that bad people use Bitcoin as a mode of payment for illegal trade such as drugs, etc because it cannot be tracked down by the government. This is what I am afraid of legalizing the use of Bitcoin as decentralized money. It seems that it will be used rampantly by people who are doing illegal things.
The same things happen with cash, just because some people use cash for bad things doesn't mean the cash is bad.