In the long term, the incentive of "I must pay close attention to the light or I will have to wait another cycle" is much more powerful than "I might get anothe

In the long term, the incentive of "I must pay close attention to the light or I will have to wait another cycle" is much more powerful than "I might get another 15 seconds of phone use if I don't bother looking up from time to time". People need time to adjust to that weird red light scheme (or it needs to adjust to allow a longer gap just after turning green).