I'm relatively new to it but my son's been playing guitar for about 5 years and is grade 5.
Last September he started secondary school and was asked to join the only band, on bass.
Straight away, hearing him play --- his choice of notes, timing, phrasing, everything really --- juat made me wonder if it's going to be his 'thing'.
Personally, i had a big Fender poster on my wall (age 7, given by an uncle) and was always fascinated by the bigger guitars. Watching Top of the Pops would find me staring at the quiet ones and as my teens approached i'd be humming the line from Rio or Avalon.
Shame i didn't start then!