[Niamh.]

Do you think school children should be split up more during their school life?, meaning friends should not stay with friends for more than one term!

No absolutely not, making friends and keeping friends is an important part of learning how to make and maintain relationships imo

Do you think we should still have mixed ability classes and not top and bottom groups?

I think for secondary school it's necessary to split the classes according to ability, so that kids A - Aren't falling behind because the class is moving too fast or B - The class is moving too slow for other students and they're not able to reach their full potential because of that

Do you think there should be a class throughout school, that would deal with real life issues, Bullying, Racism, Addiction , Sex , stress, and how to be a better human being?
this class would be part of school life and even carry a qualification.

There already is such a class CPSE (Civic, Social and Political Education) and the kids actually do this as a Junior Cert subject here (similar to your GCSEs)