Not that those aren't luxuries, but for the most part they are considered to be part and parcel of modern living. California has free cellphones for poor people because it's considered a necessity.
Cell / Internet I would agree are general requirements in the modern world for the most part. But it's also important to understand their impact on quality of life. There is a hugely understated value in the fact that an individual can have access to almost the entire knowledge base of humanity in the palm of their hand, and it's damn cheap for what it is. The closest comparison in 1970 would have been a full encyclopedia set which were actually pretty comparable in cost to a phone/laptop + internet service, yet obviously far more limited.