*Two of my university friends went on to be teachers. Both has 3rd class degrees, one because she scored 0 for a quarter of her final year due to plagiarism.
A couple of Facebook friends are primary teachers and have dreadful grammar.
It takes a lot of dedication for a "better" candidate to want to be a teacher though, it's a pretty tough job with a salary which isn't fantastic. I've put better in commas because I appreciate someone with good academic results might not be a good teacher.*
When commenting on such things please be careful yourself, people in glass houses shouldn't throw stones and all.
QUOTATION MARKS- not commas!
In terms of the op, I can see what the op is saying and think a 2:1 is a good idea for secondary, not necessary for primary though.
However, as previous posters have noted, this would leave no one to teach your children!
Better conditions for teachers needed to make it an appealing profession. I don't believe an increase in salary is necessary.