Skate Blades Can My Friend Skate Just Once On Dull Blades?

Can my friend skate just once on dull blades? - skate blades

My friend has new skates and not sure that a good person. She wants to go to the track and see skating on them, they feel like skating. Since the new skates, the blades are blunt. The company did not take them back if sharpened with them first. So my question is ... Is it acceptable that in the leaves of the skate mate only once to test?