Having a meter box and small power distribution unit at your door is not unsafe in itself, because the meter box and small power distribution unit is a device used to measure and control electrical energy consumption and is part of the household electrical system. However, safety depends on the condition of the meter box and small power distribution unit and the surrounding environment. First, make sure the meter box and small power distribution unit does not have damaged or exposed wires to prevent shock hazards. Secondly, the meter box and small power distribution unit should be installed in a well-ventilated location to prevent overheating and ensure that there are no flammable materials around it. Check the meter box and small power distribution unit regularly for any abnormalities. If any problem is found, contact a professional electrician for repair in time. In addition, do not pile clutter around the meter box and small power distribution unit to ensure that electricians can easily access and operate it during repairs or emergencies. Overall, keeping the meter box and small power distribution unit in good condition and following safe operating practices can ensure its safety and reliability.