Rental car vs Uber (or taxi)

I apologize for asking a question related to a brief stay (I "live" at another forum) - Visiting Cancun for a week with two teens, can I swing it w/ an Uber or two and public transportation to see the sites and by food? Having driven in Costa Rica and judging from what I read about Cancun traffic, I don't want to rent a car.

An Uber from the airport to the beach, and.....?

Gracias, amigos ! 

C

I don't have a problem driving  From Cancun to Chichen Itza or to Tulum in a rental car.

Thanks! I found out that Uber is gone in Cancun, but rental cars are still there!