You should have been alive in the 1970s (maybe you were) when drunk driving was truly a slap-on-the-wrist offense. In 1980 came MADD, and though their ad campaigns were annoying -- they and other similar efforts were effective. Since 1982, drunk driving fatalities in the US has decreased 52%, while total traffic fatalities have declined 18%. Among persons under 21, drunk driving fatalities have decreased 83%.[1]

[1] https://www.responsibility.org/alcohol-statistics/drunk-driv...