I'm with F3G here.
I trained at an ATC airfield. A nice controlled environment where nothing unexpected was supposed to happen (people turning up in the wrong part of the circuit unexpected, people cutting in front of you on final etc), and when something unexpected did happen ATC sorted it out and told you what to do.
And, at one point (I think it was my "first" solo on retraining after not flying for 13 years) when ATC wanted me to orbit on downwind, they first asked my instructor whether I could cope with this, and if he'd said "no" they would have dealt with their problem in some other way (eg by sending the heavy or whatever it was around).
The downside of training at an ATC airfield is of course that I still get a bit concerned when entering the wild wild west of a busy circuit at an uncontrolled field.