Raising the driving age just means you'll have a lot more inexperienced 25 year olds driving around instead of instead of inexpreienced 18 year olds.
well, I'm open to alternative analyses, and yours is thoughtful. However, I remember my own 16-25 years. I can't count the number of times I went out, pissed drunk, could even see straight, to drive home. Now, you have to admit, an adult is less likely to attempt to drive home drunk than a 16-year-old. I know that's the case for me. Yeah, some of the problem is inexperience, but some of it must also be general lack of social maturity. (actually, given the relative frequency with which I'd drive either drunk on alcohol, or high on any number of chemicals, and given the number of times I've been pulled over by the cops while flying high or drunk, I'm lucky to be alive and lucky to have only once been charged with DWI.)
Also, yes, if we're not going to commit ourselves to the massive costs of public transit infrastructure, then we need some consideration for private transit. Given that you're a truer rightist than I, I'll assume you're not open to the idea of increased public transit in areas wherein the economic feasibility is questionable. Given that situation, sure, we need to allow children to drive.
But you have to admit that raising the drinking age is not a viable solution to the drunk driving problem. Raising the driving age would at least ameliorate (but, you're right, probably not alleviate) that problem.