> According to the 2020 census data linked below the percentage increases to around 24% for individuals who worked full time all year.

It said and implied nothing about people trying or not. GP attempted to cast this as "1/4 of people succeed, so it's easily achieveable"

Also, if I look at the people around myself and see that 1 / 4 are able to do something, it would probably be easy. So it’s the GPs own self awareness combined with the stat.