Many first-time plane buyers try to start with an advanced plane. It is durable, light, easy to repair, and flies slowly. Every plane has a speed where the wing simply stops flying.
Trainers have very slow stall speeds .
The low stall speed is due to the flat bottom airfoil shape. When a trainer does stall, it recovers quickly and with little control input from the pilot. A trainer takes very little altitude to recover. Trainers are stable and tend to right themselves. This stability makes the trainer easier to fly and smoothes out mistakes.