Would this create a more safer community? would this cause people not to resort to crime? substance abuse? etc?
Your thoughts why or why not?
I think yes. The use of crypto currencies that are digital can reduce the risk of criminal activity. Because it is digital, the public can reduce criminal activities such as fiat theft.
Even though the use of crypto is also not spared from hacking activities, but this hacking activity is usually very rare.
Cashless criminal activity is not done like old fashioned physical theft, but for example by kidnapping. Here they call it express kidnapping. They aim to release you quickly. This was done here before hyperinflation, usually the victims were forced to empty their atm accounts. This is no longer possible because physical money lost its value and ATMs are 99% of the time empty anyway.
The criminals look at you, and check your lifestyle. Here simply owning a good enough car would make them tail you, see where you live etc. By knowing your daily routine they pick the best moment for the attack.
This is why it is so important to not look wealthy, even if you are. In the nice countries this might not be much of an issue, but it is in others. Very important when you travel. The cheapest looking Chinese smartphone is always better than an old iphone, it might even save your life.
So in short it simply changes their modus operandi. Some activities won't be feasible, but they will find new ways as long as the place is bad. Maybe its a little worse for crime, since it can leave more traces, but here are also smart crooks online etc.
The (bad) habits or activities themselves are not changed by the money itself. You can probably make an experiment leaving 1oz of gold or something of equivalent value (ie 1500 USD) and you will see all sort of people reacting the same. Maybe its a good idea for a hidden camera show...