> I was told that rephrasing the topic for the introduction is a good thing to do.
It's not a bad idea, but the way you've done it now is a little problematic.
It actually changes the meaning and seems almost mechanical.
I would probably say something like: "I strongly disagree with the opinion that it is a good idea for schools to tech young people how to be good parents."
I think you're right not to repeat the exact words of the prompt.
However, if you must change something, and if you are not sure whether the synonym will have the same meaning, just change the number.
To further analyze your use of synonyms:
1/ "Some" is slightly different from "few". You could use "A few" and that works a little better. Although not perfectly.
2/ "People" is very different from "masses". "Masses" is a very charged word, and implies a kind of societal division between the elites and the rest (i.e. elites and the masses).
3/ "Great" is different from "nice". I would go with "good".
4/ "Idea" isn't exactly the same as "option". "Option" can more easily replace "alternative".
5/ "Educate" is a wonderful replacement for "teach"
6/ "Kids" works well in place of "every young person"!
7/ "Father or mother" also works very well instead of "parent".
Anyway, I hope that helps.
I'm sorry if I gave too much feedback!!
I am of course always happy to give more if you want it.