There is only one air switch and one ground wire at home, and there is no leakage switch. Is it safe to use electricity in this situation?

Is it safe to use open wire and ground wire at home? In this case, it is necessary to have a good qualified open circuit and grounding wire. Modern household appliances have strict standards for insulation, and two-plug and three-plug appliances have strict requirements, so they can be used with confidence. However, if there is no leakage switch, it may lead to electric shock danger or unpredictable leakage to the ground due to leakage, which may double the electricity bill.