That's a fair point - I didn't know you could opt out.
You can only opt out of having your medical records on line. You cannot opt out of having your medical records follow you from GP to GP when you move.
Where are they held?
Your GP holds your medical records. Notes from treatment received elsewhere, such as in a hospital, will be kept there. But your GP should also receive a summary report, and this will be added to your medical records.
Your medical records will be held by your GP. Notes generated by treatment undergone elsewhere, for example in a hospital or clinic will be kept on-site, but your GP should receive a summary report from other treatment received by you to add to your medical records.
Who holds my records if I do not have a GP?
Your records will be held by the local health authority or health board (in Scotland) on whose medical list your most recent GP was included.