Instagram is a huge factor in the rise of foodie-ism. If you are what you eat then you can use pictures of food as a form of self-expression. Picture of a dish at a quirky new restaurant? You're adventurous and on-trend. Made a sourdough bread from scratch? You're artisanal and authentic.
We also have to consider that 'cool food places' is one of the biggest draws that have led people to move into big cities in the past 15 years. Young people are ditching chain restaurants for hipster authenticity. Fetishising the latest Pho place as being more authentic than the last is one way to demonstrate your competence in the urban marketplace of food choices. Which leads on to the phenomenon of 'review-ism': how we now depend on internet reviews to decide where to go.
The other thing wrt television... old cooking shows were boring. Throw in a dose of reality tv, make it exciting, and people will watch. It's also one of the few tv shows where a person could pretty reasonably recreate it, probably simplified, within their own home.
Food and cooking lost a lot of value in our culture for many years. We started optimizing around the wrong things (fast and easy - cooking is a struggle!) and then again after more wrong things (lets replace fat with extra salt and processed foods!). And only lately has the idea of “fresh and seasonal” started to become more mainstream - again. Where as before the War it was what people did because it was how it was.
There’s a lot of good cooking in the USA that just vanished from before the War. Very localized dishes, lots of stews. Some old cookbooks reveal how much we’ve changed and have also reclaimed old values.
This digging up of pre-industrialized food cherry picks the best of each area and uses higher standards for food quality and safety (that would have been unfeasible generations ago).
I'm not knocking regional food, I'm glad this is happening and love to see and try new things. I hate seeing the US covered by the same handful of chain restaurants.
We've come full circle now where inefficiently producing and purchasing high quality ingredients and having the time and resources to cook them is now the higher class activity VS the efficient processed food sold to the masses.
Notice how most of these cooking shows rely on eye popping photography and visuals, which have become that much more prominent with better and better smartphone cameras. With above 2 factors in place, it's not surprise that there is an explosion in cooking related media and shows.
Contrast this with potentially other entertainment categories which cannot be posted very easily on social media, like learning piano or guitar etc.
Makes sense, I guess.
My own theory is that many more men are into cooking nowadays, so the market for cooking-related things may have expanded up to 100%. Also, car ownership is becoming a burden rather than fun, and new home ownership is becoming unaffordable, therefore conversation about something everyone has in common has shifted from cars and homes over to cooking.