It didn't symbolise that. It symbolises the unity between the industrial proletariat and the peasantry. It's not about different proletarian occupations; it's about a class alliance between two working classes.
The peasantry doesn't exist anymore in most parts of the world, but imo most people understand the hammer and sickle to symbolise communism anyway so it still works.
I don't. I don't care how much AI "evolves". I don't need it so I don't use it.
Restaurants exist and some of them are quite good. But I still have a home cooked meal for every meal. The existence of restaurants doesn't make home cooking obsolete.