At age 20 in the United States, you’re old enough to fight in the military overseas, work full time, [...]. But apparently Senate Majority Leader Mitch McConnell, R-Ky., doesn’t think a 20-year-old is mature enough to buy a pack of smokes. The senator plans to introduce a bill raising the national age requirement to buy tobacco products from 18 to 21. McConnell might be well-intentioned, but this plan is ridiculous and will only strip away consumer freedom from millions of young adults with negligible benefits to public health.