On the previous world industries for each skill were unlocked at level 50. I recently proposed this would change to 20 and I know some thought that was too low. The advantage of having it at a lower level is it exposes new towns to industries quicker and helps towns plan where to place them since they are unlocked so much earlier. Industries will also improve when the corresponding skill is leveled up. Please let me know bellow in more detail your opinion on the matter. Thanks!