I think I have assumed GIDS to be children only but is it for adult referrals too?
Had to double-check myself. We tend to say "Tavistock" a lot, when we mean "GIDS".
The Tavistock and Portman NHS Foundation Trust is the broader organisation, offering a range of psychiatric services.
The Gender Identity Clinic (GIC) and Gender Identity Development Service (GIDS) are two services within that trust, for adults and children respectively.
I understand Bell was working for the Tavistock itself, rather than for any particular specialised service within it.
I'm sure he must have encountered gender cases during his career, but I get the impression that by the time this new surge of ROGD etc started, he wasn't so much involved with direct patient care, being more management level, so he probably has limited hands-on experience with the current cohort. But he's hearing all the reports from staff who have.