No child gets that provision without it having been established to the satisfaction of people who know what they're talking about that they need it because otherwise they will not learn and make progress.
Children get 1-1 full time support only when they have major learning difficulties, including serious language processing, comprehension, sensory and social communication problems. They are exempted from some school behaviour rules as adjustments for disability, particularly in very strict schools where they have fairly pointlessly rigid rules anyway - e.g children with massive sensory sensitivities who don't have to wear daft ties and blazers. They have special provision at mealtimes generally because they simply cannot cope in a noisy, busy dining hall, and the same applies to things like not having to queue, because they simply cannot cope with it.
If they have particular difficulty with a part of the curriculum, they are in fact generally taught the same curriculum but in a different way, for example with 1-1 help, touch-typing instead of handwriting, etc. I would be amazed if your school is exempting them completely from the National Curriculum, because in most circumstances that would be unlawful.
They will only get "special" food due to allergies, or because they have an eating disorder, or because they have major sensory problems with the textures of certain foods. If you think any of those are a privilege, think again.
They may not be punished for things that are the result of their disabilities, and quite rightly so. Do you complain if children aren't punishing for failing to stand up when they are told to? And does that still apply if that child is in a wheelchair?
I promise you, if you think having a learning disability gives children such an easy life, you should try walking a mile in their shoes.