...didn't work...ran a farm...investments...
The dressage friend did work, hard. OK it was "horsy" work, but getting up & mucking out 10 horses at livery, feeding them, turning them out etc before even starting with your own, then again in the evenings. Kind of job that pays minimum wage. And teaching in all her "spare" time in all weathers
"Ran" a farm (rented)? Oh yes - feeding the cattle, mucking out (again), hauling feed around, moving the cattle, hauling seaweed up from the beach & spreading it as NT insisted on no artificial fertilisation of the land, mending fences, clearing weeds and undergrowth, maintaining buildings, fixing roofs, treating any injuries the animals had, helping with milking & calving, helping look after her disabled father, yeah really easy privileged life...
Investments, you know things like ISAs, electricity shares etc. We aren't talking thousands a year here maybe a few hundred income max. Topping up my father's moderate salary. We just didn't do anything more expensive than camping for holidays, outings like the cinema were a real treat maybe a couple of times a year, never ate out etc. Or are you really suggesting that anyone with an ISA is "wealthy & posh"?