I think hotspots are specific to the brand/model of phone. My Samsung A01, purchased from CC a couple months ago as a replacement for an older Sony phone, does have the hotspot feature.
My previous phone was a Sony, provided by me (CC didn't offer Sonys). Buying a phone elsewhere is an option so long as it's ATT compatible, but it does take a little extra to set up the phone properly (CC sets up ahead of time the phones they sell and ship). I couldn't figure out how to make my Sony work until I wrote to CC and they sent me instructions on what I had to change or enter at certain key places.
Mike G.
Liberty is meaningless where the right to utter one's thoughts and opinions has ceased to exist. That, of all rights, is the dread of tyrants. --Frederick Douglass
photo: Yosemite Valley view from Taft Point