I have always been able to take the buggy right up to the departure gate (I fly from Belfast) & it was taken off me just before boarding. At the other side, sometimes it has been at the bottom of the staircase, but mostly (and definitely most recently) it arrived on the carousel - with the exception of Aer Lingus last month who forgot to unload the buggies & we had to wait for ages (I think I remember that you are from Ireland - Am I right?)