I do that to friends because I know them, I don't want them in my cyber space, my online life and my social real life are different, I have a good few 100 followers on my social media platforms that share the same hobbies and interests as me that my close contacts may not so if a local friend wants to ask me anything or go for coffee, that's good and we keep social media out. I don't try follow everyone just because i know them or speak to them a few times a week and I like that they don't do it to me. When I used Fb I used to see people 'friends' with local hotels, garages and all that when really, they are working in a totally different environment and just clocking up 'friends'. I don't even have my family follow me or I follow them, we chat every day, why look at my social media.