I expect it was. We are all different, aren't we?
When I was 11 and started secondary school in 1975 my best friend was a vegetarian. I'd never heard of someone who didn't eat meat. Similarly, many of my new friends had never heard of eating offal, which we did at home all the time. When my mum wasn't giving me Fray Bentos pies on my lap in front of Wacky Races, she cooked things like kidneys and pearl onions fried in butter on toast, or liver and bacon and heart stew. My new friends found that odd and some of them found it repellent.
I also knowingly met Jewish people for the first time and learned that some of my new friends kept kosher, or at least when their parents were looking.
There was a girl in my class who drank Perrier. This was 1975 in England so I don't think it was just me that was surprised that you could not only get water in bottles but that people would actually pay for it. Her mum was French.
I'm really glad I met those people. I wouldn't say their habits were better or worse than mine and definitely not that they saved me from my feral ways, It was just that they were different and us coming together was a rich experience. This was a state school in an area that had a mix of working and middle class children, not some rarefied Bohemian place.
I now eat and cook all sorts of things - I am a very keen cook - and though no expert, if someone came round to my house who was a vegan, a vegetarian, or who kept halal or kosher, or had allergies I'd know roughly what to give them and what not to give them because I've learned and because I am interested in learning I'd ask them.
Soon I'll be starting a ribollita using cannellini beans, cabbage and other leftover vegetables plus a parmesan rind I saved. We'll be eating it about 8pm in front of Mission: Impossible 6 which I recorded on my Sky box.
But if someone phones out of the blue and invites us to join them at a restaurant then I'll put it in the fridge and manage not to run around and trip up the waiters.
I am a mixture of the sublime and the banal. The most interesting people often are IMO. It's much more interesting to be flexible than hold to a rigid adherence to rules like sitting round a table to eat your dinner or never eating ready meals or at McDonalds.