What can be done to lower dui incidents?

I've been thinking about how to use the dui program to prevent them before they happen. In WA you must attend a vicitim's panel if you are convicted of a dui, this includes listening to people who have been impacted by a dui- either the victim, the culprit, or family member. It is actually a positive and informative experience rather than a chastising the offenders situation. I think having people go through this experience before obtaining a license could be helpful because it really does affect you emotionally. Or another option is for people to have to obtain a special permit to use and buy alcohol, businesses must have a license to sell. Servers must attend a 3 hour course or responsibility and hold a card to be able to sell so why isn't there any stipulations besides being of age to consume? Marijuana has it's own permission card. Again the vicitim's panel could be a requirement to attend as well as a comprehensive course and test to teach the responsible consumption. Of course alcohol would be easy to obtain even without the special license sych as going to a friend's house who is able to buy it. But this way the harsh punishment for DUIs wouldn't be able to be fought because these people essentially have to sign a contract to use the stuff. What do you think? I understand there would be costs ociated with all these ideas but do think it would help lower dui incidents and deaths?