I know of some people both young and old not progressing from their learners because they are too scared of being judged or failing their practical driving test.
Driving tests are just like any other test. You are assessed on your ability. There is always a need to set a level of competency otherwise, people get hurt or hurt others.
Just today I heard of a situation whereby someone didn't want to go for their restricted licence test purely because they heard a rumour that everyone fails that test.
Actually, this is wrong. With any good training comes success. If you want a good chance of passing any tests, get professional help.