Bonus question: Where is London located? (a) The British Isles (b) Great Britain and Northern Ireland (c) The UK (d) Europe (or 'the EU') (e) Greater London
Nah, small airplanes are relatively easy to build. Even if we eventually stop large-scale production there'll always be the occasional hobbiest putting a one-seater together.
As long as there are old men there will always be steam trains. They always run on dedicated lines between the hours of 9:15 a.m. And 10:02 a.m. every 5th Thursday unless they cannot be bothered or it's raining.