As has always been the case in motorsports. When you delve deeper, a good number of drivers come from families that were very financially secure. Like Piers Courage (Courage brewery), Peter Revson (Revlon cosmetics), Paolo Barilla (Barilla Pasta), then of course you have the Rodriguez brothers Pedro & Riccardo, Prince Bira, Betty Carstairs etc.
Although the ones I've mentioned are decidedly more capable than Logan Sargent.
Sadly though, there is also an element of motor racing where rich fathers live their fantasies through their sons - there was one Italian chap racing in F3000 in the late 1980s who was bankrolled by his father and forced to go racing, otherwise he would lose part of his inheritance. So yeah, there's all sorts of weird that goes on.
There are genuinely very few drivers that come from humble backgrounds.