Everyone is entitled to give their opinion especially if it is based on their experience
The experience they base it on is going to be very different for each individual and possibly relates to the area they live in
Certain things are facts such as the MYTH of a general LGV driver shortage - that can be backed up simply by looking for full time permanent jobs on the job sites + if there was a real shortage then newbies would be snapped up by companies for a full time perm job virtually the moment they pass the tests