All depends. Regarding moving about every day, hard to beat owning a beater Toyota or Honda over a 2-3 year period than using Lyft or Uber for that. But if you want to move around with the latest gadgets a couple of days a week, maybe car sharing or taxi or sharing makes more sense.
I think this depends on the service being purchased and the location. Cars have an upkeep cost, insurance, etc. If you're using a car only sparingly it may in fact be cheaper to use a service.