I don't think that is true. Kids at school do not believe their friends with ME/CFS. Parents don't believe their children. Employers don't believe their workers. Because there is nothing to see. In general they have no knowledge of any biopsychosocial theories. Even when I retired as a doctor I had never heard of Wessely, Chalder, Sharpe, White and their theories.
My parents didn't believe that my ME was anything other than a psychiatric issue entirely because that was what they were told by the hospital doctors during the 10 weeks that I was an inpatient when I was 9, desperately ill at that point and given less than a week to live.
My parents shared this misinformation with family and friends, who then passed it on to their children.
When I was discharged from hospital, the doctors told my parents to make no concessions to my lack of energy and the fact that I was still clearly very underweight. They were adamant that I should return to school full-time from the outset and that I should be made to participate in all aspects of the curriculum, including P.E.
Thankfully, my teachers had more sense than my doctors. Despite medical advice to the contrary, the teachers allowed me to take breaks during class and made sure that I abstained from P.E. because it was obvious to them that I was struggling to cope with the level of physical activity required. My young classmates were also aware that I was still very unwell because they were not blind to what they could see with their own eyes and at that age had not been told otherwise by ill-informed adults.
Ultimately, and unsurprisingly, I relapsed badly on changing to a new school without this support and had to be hospitalised again, this time for 9 months. I was never able to return to school again.
My parents and family still do not believe in ME, despite watching me suffer for decades, because that is what they were told all those years ago by the hospital. They think I have willfully chosen this tortured life.
Present day, during a face to face appointment, my current GP stated that he considers ME to be nothing more than a label to cover a mental health issue. He is still my GP because I have no choice, given where I reside.
Nothing will change until the NHS as a whole leaves behind the psychosocial model and stands with us and not against us. Only then will the truth trickle down through society to the kids, to the parents, to the employers, and pwME will finally be treated with the care and respect we deserve.
Unfortunately, I very much doubt that I will live to see the day.