District line
These trains entered service in the early 1980s, just like me. This is London Underground’s busiest line (though you may not suspect it from the empty carriage I pose in), and I can say with 100% honesty that the District is definitely my favourite tube line. It’s both easy to get from where I live and the monkey bar style handrails allow for numerous permutations of dangling.
Because of its broad reach and number of stations which are located above ground, each carriage on the District line tubes is guaranteed to have at least one EastEnders fan onboard, desperately waiting for the train to stop at the fictional Walford East station. If you see one, it is considered common courtesy to other passengers to gently shoo them off. They are nothing but rats with wings.