School is social hell for many children, with many children being bullied and feeling extremely lonely despite the numbers of other children around to see every day.
HE does not stop children having as many friends as they would like. My oldest has just returned from a birthday day out with three of her best friends. On Wednesday she is going to spend the morning with six other of her friends, and the afternoon at a meeting where there will be a huge age range of children present to socialise with...in two days she's getting more socialising time than school children get in their break-times, and that's not the only times she'll be socialising.
Many children leave school with vast gaps in their knowledge, having learned simply to hate learning.
GCSEs are not the be-all-and-end-all, as evidenced by many very successful people in the world who have not a qualification to their name.
HE is not a barrier to studying for exams if so desired. I know of many HE'd adults who are very successful in the field they have chosen to work in, one of whom is currently studying for a PhD despite having no formal teaching until the age of 16.
Education outside of school does not necessarily have to look like school at all, so there is no need for lesson plans and making children learn things they're not interested in.
Children are naturally curious, so long as we don't bash it out of them, and tend to learn masses simply by absorption. They learn through conversation, reading, playing, visiting museums, going on group visits, attending science festivals, watching TV, using computers, baking cakes, going to the post office, shopping...the list goes on.
Home ed kids frequently, IME, have many different skills and lots of different knowledge to their schooled peers. What matters is that it suits that child and supports them in the lives they are leading right now.
The NC changes over the years, which means that people's ideas of what children ought to be taught to memorise changes, which suggests that the idea that there is a set of information that all children need to be taught, and any who do not know it are doomed to failure...which is clearly bollocks.
40% of children sitting GCSEs didn't get an A-C pass, which suggests that school fails rather too many children for my liking - surely HE can't have as high a fail-rate as that!
Oh yes, and how come it's OK to force children to go to school against their will, and yet not OK to decide to HE them from the very beginning? Aren't both options just the same? Most kids don't get a choice about whether they go to school or not, and I don't see anyone complaining about that, so why complain that HE kids don't get a choice about whether or not they want to be HE'd?
One day we will see a thread like this that has no misconceptions about HE, as it is becoming a more and more common choice to make.