Ds has been learning piano forever, or so it seems! I think he started in year 5 maybe and took his grade 1 in year 6. He then switched teachers in year 7 and took a year to settle into his new school, not making a huge amount of progress. We decided he'd do grade 2 in year 8 to give him something to work towards, which did encourage him to practise a bit and he passed. He was planning to take grade 3 in year 9 then lockdown happened. To be honest, he wasn't that bothered by piano and did barely any practice (once/twice a week).
During lockdown he decided to learn a rap song and this snowballed into a bit of an obsession with piano, which is still continuing. He's just almost mastered Turkish March which looks to me to be around grade 5/6. I did piano exams up to grade 8 and he's much more proficient than me now. He's also really keen and committed.
Is it worth him doing piano exams or should we just let him carry on as he has been doing, finding pieces he's interested in learning and then working on them? His teacher doesn't seem to mind either way.