Buying a gun with more ease than purchasing Sudafed

I saw very interesting signs while attending the March for our Lives on 3/25/18.  It was absolutely amazing listening to the young speakers, raw with emotion yet hopeful for the future.  The most eye opening sign was the fact that a young person can purchase a gun with greater ease than purchasing Sudafed,  a "behind the counter" product.  Thinking it is time to change up some laws.........