So, how exactly do these crafty devils get away without paying any taxes in Washington? Considering your state has no income tax, they're not evading that. Beyond that, if they buy gas, rent, phone service, etc. then they pay taxes or are contributing to tax revenue. Besides, this sounds like an investment to me, just like if it were the kid of a tax payer. Get them educated, they get a better job, and they pay more taxes.
SOB