EastBluffCynic : Yes, exactly! As I found out, different cities and states have different rules. I can drive in Chicago now, but I had to get a $20 vehicle inspection and register (free) with the city. On the other hand, Peoria, Bloomington, & Champaign (the only other places I've driven so far) had no special restrictions.
@PeoriaIllinoisan :
Do you know if Lyft can not pick
up passengers in Peoria and drop them off in Peoria? However it seems they can pick up passengers elsewhere and drop off in Peoria.
If so, do you know what is the story behind it?