Oh here we go. Is this another thinly disguised “private school kids are actually more stupid than state school kids” thread?
FWIW, DS’s school did a mixture of IGCSEs and GCSEs.
DS got 10 9s, as did about 15 other boys.
He then went on to get 4A* at A level. As did maybe 9-12 others in his year. And yes, they were “proper” A levels, just the same as all the state schools sit.
But yes, sure, private schools pick IGCSEs because they are easier, because they wouldn’t get such good results otherwise. If that were really the case, then the private schools wouldn’t be getting the good A level results that they do, would they.
Everything I have read points to IGCSEs being either more challenging or the same as GCSEs, and certainly most UK universities see them as being equivalent to GCSEs.