Using your mobile in public places

Nowadays everywhere you look people are on there mobile phones either talking, texting, pinging , tweeting or using other varies different ways to communicate but is this right? in the case of one store they've baned talking on your phone whilst your being served and i think this is right people are too involved in whats going on in there phones so most of the time were all quite unaware of whats going on around us in the real world, but i think the reality of this situation is mobile phones are very very important to modern day life and too allot of people and i regrettably have to include myself in this they are a necessity and they are very useful so its not such a bad thing, all i think is people still should make time in there lives for good old fashion face to face talking.