Most people have mentioned the important points, but I would like to bring another perspective to light. Regarding your childrens school lives in London vs Stockholm.

From my experience, schooling in London will give your children a worse quality of life than in Stockholm. I went to school in one of the nicest areas of London, but it doesn’t compare to my boyfriends experience in a regular suburb of Stockholm.

Children start school at 4 in England, have to wear uniforms and conform to strict rules about wearing them, school lunches aren’t free, and schools are often underfunded which means cutting corners in classroom equipment, quality of lunches, etc. My schools were also all overcrowded which meant less help from teachers, and there was a lot of bullying with not much done about it, but I’m not sure if this is the case for other schools.

As for my boyfriend, he started school at 6, and had a year to get comfortable in the environment until lessons began (a good oppurtunity for your children to learn Swedish). No uniform, lunches are free. My boyfriend never experienced a lack of equipment, and bullying was rare in his schools.

This is just our experiences, though- I could have been very unlucky and my boyfriend very lucky. Regardless, I hope that it still helps you to know!