Just coming back to the thread to give an update and see the further responses. Rockafeller, thank you, and I will look more closely at the info you've linked to. I think I got a bit muddled in my last post and didn't really complete my thoughts...yes, we live in modern times, and we don't need to eat meat anymore, I agree. I watched that Simon Amstell mockumentary on veganism last year, I forget the name, but it was really eye opening actually, and despite being a spoof, I could see it playing out - a future where we look back and are disgusted at the thought we ever ate meat/milk products. So, I think we're in a transition to a more plant based diet.
Some of my friends who eat a vegan diet are a bit 'alternative', and would, for example, eat a deer that had been killed on the road, or a rabbit that the dogs had caught. Their views are based on not wasting what the earth provides, I guess, so maybe there's another name for that. I can relate to that viewpoint.
Also wanted to clarify my original post. I wasn't looking for suggestions on how to convince my son to eat meat, far from it, I was just annoyed with how I'd handled his concerns, and wasn't sure whether I should bring it up again with him/carry on as we were and wait for him to bring it up/immediately remove meat from his diet. I never intended to be dishonest with him, but think I deliberately blurred the conversation to avoid a tricky subject.
Anyway, this is long, sorry. An update. It played on my mind for days, and had decided what I would do is incorporate more vegetarian food in our diets in anticipation. He has since brought it up again himself, it had obviously been on his mind, and I was very clear and honest with him, and he was very clear with me he doesn't want to eat meat or fish. He hasn't for three days now. I'm now panicking a bit trying to think of quick, easy vegetarian meals that he will eat! I have a young baby too so it can be tricky getting dinner at the best of times. If anyone's still reading, any recommendations for vegetarian child friendly cookbooks that could help?