"When I were a Lad" (thirties), used to be a second GA grass "aerodrome " inland of Stanley Park. From Squire's Gate someone flew a service to Speke with a Spartan Cruiser. Can't remember how nuch, but it was more expensive than rail.
No security at "Stanley Park Aerodrome": a schoolboy could wander freely round the hangars and look in the aircraft. Of course, we were better behaved then, no one would dream of doing any damage or pilfer.
Happy Days !