From the NHS website:
"Why do we no longer vaccinate teenagers with the BCG at school? How can I get my child vaccinated?
TB is a difficult disease to catch because it requires prolonged exposure to an infected person. For example, you are very unlikely to catch it by sitting or standing next to someone who is infected. Also, rates of TB in the UK population have fallen to very low levels over the past 15 years.
The BCG vaccination programme was changed to reflect this and is now only given to people in at-risk groups.
If your child does not come into one of the higher-risk groups, the current advice is not to give them the BCG vaccination on the NHS. There are private clinics that parents can approach for a BCG vaccination, but the NHS does not keep a list of these clinics."
Looks like I might have been in one of the last groups of teenagers routinely given it in the UK.