The two things are actually often related: junk food is faster, more accessible, stores longer, and is cheaper per calorie. So you can be hungry, skip a salad meal (that would need to be bought fresh and prepared) while having “mcdonalds”/microwave meal/high calorie meal for your leftover meal. Third has been the pattern, following US, where it is very common for the poor to eat more calories than the rich, while eating less healthy meals.
Lol! My mum still asks both me and my husband (“techy” jobs according to her) to solve all her problems with computers/printers/ the internet at large/ any app that doesn’t work… the list is endless. I take it as a statement of how proud she is of me that she would still ask us first, even if we haven’t succeeded in fixing a single issue since the time the problem was an old cartridge in the printer some 5-6 years ago.