Came back at 55 after an illness enforced break, but not a noob. My left hand doesn't work so well these days so I usually sound like a beginner - fumbled chord changes, accidental muting and buzzing etc. Things are slowly improving, just got to keep telling myself I used to be pretty slick so if I try hard enough I'll someday do it again. We don't have AARP on the side of the pond but we do have SAGA for the over 50s. Anyone who can figure out which way round to hold a guitar is too exciting for them, so I quit after they'd bashed my wallet for a year. Never found out what SAGA means but I believe it's Sex Annually, Generally August.