Here is some background on Kerry's flying family and where he got
started, extracted from the Des Moines Tribune.

Quote

John Forbes Kerry was born Dec. 11, 1943, in Denver, Colo., to
Rosemary Forbes of the Boston Brahmin Forbes family and Richard Kerry,
a test pilot in the U.S. Army Air Corps. Kerry was raised Catholic,
but learned 15 years ago that his paternal grandfather was a Czech
Jewish immigrant.

----clip----

Kerry - an active pilot (GA), hockey player and student of classical
guitar - approaches nothing halfheartedly, said Thorne, a Boston
publisher and financial broker and friend at Harvard. His first wife
was Thorne's twin sister who he divorced.

"I've witnessed this from the same cockpit. It's part of his wiring,"
said Thorne, who remains Kerry's closest friend. "He doesn't want to
mess around. He wants to be the best."

Unquote

So, it seems he has some valid GA background but that doesn't tell how
he would treat GA from the White House.

Big John