Remove paper currency from circulation in an attempt to deter illegal activities such as drug sales and unclaimed income

Removing paper currency would make income more easily traced and accountable thus deterring illegal activities such as drug sales or avoiding taxes on income. If people can't get paid in cash they have to pay taxes on their income like the rest of us. People not legally allowed to work in the US would have tougher time staying here illegally if they had no way to get income. The need for cash in our economy has all but evaporated.