Commentary for Rosh Hashanah 65:9

לא קשיא כאן

This statement itself involves a contradiction. You say first, 'They may be helped till they learn how to blow, even on Sabbath', from which I should infer that we may actually tell them in the first instance to blow. Then it states, 'They are not stopped', which would indicate that we do not go so far as to stop them, but we do not tell them in the first instance to blow! - There is no contradiction: In the one case we speak of

Rashi on Rosh Hashanah