Sure, quiting animal products cold turkey and going 100% can be a hassle but slowly removing your animal product consumption should not be an issue. I pay less for my groceries now that I am 90% plant based by the way.
I would also not take Nick Shell too seriouss. I am sure he is a nice guy but for someone that is so obsessed with hair loss he really does not have a lot of knowledge about it, since he is quite the broscientist. He also has this tendency to take his own anecdotes as evidence a lot.
I can buy 1 kg ground beef for $5 or 5 tomatoes for $5... which one is cheaper? xd