As children, we were taken out of school every June to go on holiday. My dad was convinced that June was the most settled month with the best weather. All I knew was that when I returned to school, my friends had found new friends and I was out in the cold again. It was hard breaking back into friendship groups. I was a shy child and wasn't helped by this situation.
As a primary school teacher, teaching a Year 1/Year 2 class, I didn't worry too much about children missing out in English and Maths. Lessons cover a wide ability range and new work, missed by a child on holiday, will be revisited and practised continuously. It's the carefully planned topic work, which broadly follows a six week plan that may be disrupted for some children who miss a week or two at the beginning. This work won't be covered when they get back.
Missing the teaching of important mathematical concepts or principles in physics or chemistry at GCSE and A level could have a devastating effect on confidence and eventual grades. We moved house, changing schools many times when we were children. Different areas of the country inevitably followed a different syllabus and taught important concepts at different times in the school year. This certainly had a bad effect on my secondary education in both maths and science. I did OK but could have done better.
My parents couldn't afford fancy holidays. We caught up with visiting family in our annual fortnight off school. Similarly, they couldn't send us on residential school trips. When my husband and I had our three children, we could afford for them to go on so called 'educational' trips to France or Austria, usually skiing trips. We never sent them on these jollies. My husband's reason was that he didn't trust anyone else to keep our children safe. Mine was a totally different reason. While any family couldn't afford for their child to take part, mine wouldn't go either. That kind of 'educational opportunity' is socially divisive and schools shouldn't be divisive. Children learn that there are 'haves' and 'have nots' in this world without it being thrown in their faces at school.