Laws that ban individual activities -- like cell phone use -- while driving are often little more than political hype. Singling out specific activities for bans doesn't do much to address the root problem of unsafe driving, which remains the issue regardless of its cause, while also generating the implication that if a specific action while driving hasn't been banned, it's okay and safe. Nevertheless, plenty of states have moved forward with laws banning talking on cell phones while driving, and more recently, texting. Next, they'll have to ban using the mobile web, or IM, or playing Tetris on your phone while driving, since they've left these (and plenty of other activities) out, but we digress... In any case, Missouri's legislature has taken the silliness one step further by banning texting while driving, but only for drivers under the age of 21. If you accept the supposed need for these sorts of laws, how could you argue they should only apply to those under 21? What happens on a person's 21st birthday that suddenly makes texting while driving acceptable and safe? Answers in the comments, please...