I know little or nothing about school, beyond memories of being there, and of when my children were pupils, so I won't pretend to have answers to that, but for many years I ran a number of university courses and during that time I saw a huge increase in the numbers of students who wanted everything from exams to assignments and timetabling to run around them as individuals, which is impossible when they are one person amongst many. It was surprising to me how many parents tried to get involved, too. I would have been mortified if my parents had so much as contacted the university when I was a student, but as staff I had parents questioning marks, asking for extensions and far more on behalf of their offspring.
I fully understand that there are things that different people find difficult or impossible to do, but my sympathies run out when the answer to that is assumed to be that someone else should do it with no concessions from the people opting out.
Whether that is refusing to take part in a presentation, not turning up to difficult meetings (or to social arrangements that don't suit on the night), or refusing to attend anything that starts before 10.00am, it is unreasonable for anyone to think that they can please themselves yet still get the rewards they think they deserve.
If we are going to indulge individuals in their reluctance to step out of their comfort zones, we have to rearrange society so that others are not being let down when that happens, and ensure that plans are able to go ahead one way or the other. I'm not sure how we do that, but maybe having fewer people on salaries and more being paid by results, or for participation?
Sometimes I think that so long as it is easy for people to pick and choose with no consequences, not only will they do so, but others will expect the same allowances to be made for them, too, and it seems that many parents collude in this, pushing for their children to be excused from doing things they don't want to do.
I'm in no way minimising Anxiety or other MH issues, but I do feel that if someone knows they may back out of things, or be unable to follow through with promises they should not be in positions where that matters, and should choose their career accordingly. If someone is relied on but proves unreliable there should be ways to replace them with someone more robust, and find a less responsible role for the one being replaced.
I suspect that if this started at school there might be less of it as people get older, as both children and parents would realise that to 'get on' requires a certain resilience that they could learn to acquire before patterns are formed. Maybe not, but I think it's worth a try.