Smartphones and the poeple

Today there are many kinds of cellphones or and smartphones and the people get them so easily even children have one them (because children is plural, this pronoun should be plural too). We're always so connected wired, now that we aren't don't go a moment whitout without a smartphone. they've (generally, we don't use the contraction unless have is used as an auxiliary verb: for example, they've gone to the store) They have so many stuff features.