To what extent do past mathematical learning experiences affect how people view maths as a subject? How does this create barriers to their future mathematical learning capabilities?

A large proportion of people appear to believe that they have some kind of ‘innate’ problem regarding understanding maths. I also encounter some people that are actually made uncomfortable by the notion of mathematics to the point where some learners are reduced to tears when faced with certain questions. These are obvious problems as they both go against the very important aspect of learning, which is motivation.