Absolutely! Arguing that some people can afford to run GPU rigs at home, but can't afford basic fire precautions is nonsense. Top tip is to use the best quality PSU you can find, and don't use anything flammable/next to the rigs (metal frames, etc) and you'll very likely be OK.
psus with 100000 fail safe, now about metal frames, they are much safer than many other material out there, so i guess maybe where you live metal are made of dangerous flammable minerals.