The American Automobile Associations will most likely support this plan. In the past few years, there has been a couple of car crashes by teens. Actually many of the accidents involved teens, and they usually are at fault, because they usually have a lot of distractions, from staring at their phones to listening music on earbuds. Teens also should not be able to get their driver licence at the age 15, because many are still irresponsible during that time. Driver licence at 18 is a better idea then 16, for age 18 people usually go to college, and they would have to have their parents drive them long distances and use their time. At 18, they are also freed up to do more things during that time, and they can fit in classes on driving and take the driving test too.
I might be wrong but diversity and safety are two things i can think of. If what we're seeing is a fire exit then it displays the safety issues found in early workplaces. and there is also a lack of diversity between the workers on the stairs.