Who is not allowed to drink alcohol when driving motor vehicles?

The correct combination of drivers not allowed to drink alcohol consists of drivers under 21 and those during their probation period. In Germany, drivers under 21 are subject to a zero-tolerance policy regarding alcohol consumption while driving, as they are considered inexperienced. Similarly, those in their probationary period (typically the first two years after receiving their driver's license) also face strict regulations and cannot have any alcohol in their system while driving. This is intended to enhance road safety by reducing the risk of accidents among these groups who may not yet have the experience to handle potentially impairing substances. All drivers must follow general alcohol limits, but these specific groups are held to stricter standards to promote safer driving practices.