Going on a day trip on a coach to Hendon then onto Heathrow when I was about 8, a glider landing in our school field when I was about 6 or 7 (infants school for sure), taking my son to his first airshow and several museums since and also taking him on his first flight which was in a Dragon Rapide at Legends.
Downside was I had no camera, a nice guy took some pictures of us but I never got an e-mail from him with them attached, that was a shame but I’ll never forget it.