Conversation so far:
What can you tell me about the transport in Gaelic Ireland?
Gaelic Ireland was well furnished with roads and bridges.
What kind of transport did Gaelic Irish society use?
Horses were one of the main means of long-distance transport.
Did Gaelic Irish society use a special kind of horse or equipment?
Although horseshoes and reins were used, the Gaelic Irish did not use saddles, stirrups or spurs.

Question: how did they get on and off the horse without a saddle?
Self-contained rewrite: How did Gaelic Irish people get on and off the horse without a saddle?