Heya,
@Sweet_Sophie !
I've been on LCHF since mid-June and, in that time, my very fussy son with autism (who at first deeply resented the lack of crisps, sugar and cereal in the house) has now started eating many, many foods that he would
never touch before, including salads (when we go out to eat now, he automatically orders a salad instead of chips) roasted veg, guacamole, nuts, unprocessed meat (pork chops instead of sausages, eg) and cheese that isn't cheddar.
It was his birthday on Tuesday, and we went out to dinner with a group of his friends and some adult friends of mine, and though the restaurant brought him a slice of birthday cake, he took only one mouthful and passed it along: even he's able to recognise the improvement in his health since he started eating like me.
A couple of our friends have noticed such a change in our health, colour (we're both pink again!), energy and weight loss - I've lost 3 clothes sizes, Euan's lost all his "podge" that they're thinking of adopting this way of eating just as a more healthier way to be - one of them is gluten-free, the other is vegetarian.
My point is, change is difficult, whether you have autism or not, and your family will grumble and grouse if you insist they eat what you eat. But it'll make your life (and your decision to low carb - and if you've weighed up your options and decided that's the best way to get healthy, then you need support in that) much easier and they'll catch on in time.
Plus you don't have to force them to drop from whatever they eat now to 50g carbs a day! Gradual reduction over time - if you enjoy cooking, this could be a culinary challenge to rise to: finding delicious recipes to fool their taste buds!
Good luck <3