Echoing earlier replies, but perhaps expanding.
Looking for a 'why?' to lead to a solution:
1. Awareness of the size if the car? Could lead to hesitation, reticence - or even fear over positioning
2.Machine control; poor awareness of car self-centring steering, so feeling of need to consciously steer; 'death grip' on the wheel; steering for 'now' rather than where the car will be by the time the correction happens;
3. Poor planning of where to be.
So:
1. Learn the size of the vehicle, perhaps use cardboard boxes in a car park for steering accuracy. Feel the surface through the tyres to establish position eg drain covers
2. Various! Go play in an open area like and empty car park (bigger the better!)
3. Obs & planning, with understanding, early as possible. Try here (m/c related, but many work for cars too):
http://the-ride-info.blogspot.com/p/diy ... ining.html
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