As a 5 year old, I was more focused on the doll I brought from home than on tourism. However, that was a Marian year and there was a procession during our visit. In my child's mind, procession equated with parade. I do recall the pope being processed on his sedia gestatoria, wearing the multi-tiered mitre. The bigger event for me, though, was my mother taking me to a gift shop positioned above the right 'arm' of the Vatican. I chose a large statue of the Sacred Heart that accompanied me over the years through all the moves, until it practically disintegrated. It was made from plaster of Paris. I also have the papal coin set from his papacy.
That sounds like a good argument for bringing back the sedia gestatoria to me (and the mitre too)!
PXII must have had a very good sense of balance, because there are many photos of him standing up on the sedia gestatoria!