Y'know, I did say "almost always". Seatbelt laws? Yeah, I can't think of much there, though I'm sure there's somebody out there who'll argue that seatbelt laws

Y'know, I did say "almost always". Seatbelt laws? Yeah, I can't think of much there, though I'm sure there's somebody out there who'll argue that seatbelt laws promote worse driving, and there have probably been some particular crashes in which seatbelts have led to rather than prevented injuries. The GI Bill? Actually in my limited understanding that probably wound up having consequences well beyond what was originally intended, and it's likely that most of those consequences were on balance good rather than bad. But it doesn't make them any less unintended. It wrought major changes in higher education and in the demographics of cities vs suburbs, which were probably not on the minds of those who originally proposed the bill.