You wear Guan Yu because you believe in Guan Yu's spirit and want his protection. You don't need to read eight characters for your faith, but you can believe it. Didn't say that only hard work can wear Guan Yu. Guan Yu is the patron saint of Wu Caishen, not a demon who will bring disaster to people for no reason.
It is best for individuals to wear Guan Yu alone, so as to better shelter and make money.