Translation:They asked me to lower the seats for the children.
Duolingo really should be less strict on the spelling for the English translations. I accidentally forgot to add the 's' to the end of 'seats' and it marked me wrong for putting the singular instead of plural form. I'm trying to learn Italian, I am a native English speaker and am not fussed about my competency there thank you very much.
I'm happy with the DL-translation. In this context I came up with a practical question: Most of the time you need to put the seats higher for children, so they can reach the table. But I don't know of an elegant way to say it neither in English nor in Italian - and not in German either. Has anybody a suggestion? :)