Late to the party

I think I was, until today, the only person in the world (apart from my Mum, Dad and good wife) not to use Twitter but I'm curious in many respects – will I enjoy it, will people follow me (a few randoms do, god knows why) and will I follow many others. Professionally I', also very interested in how older people might use or adopt/adapt twitter and what its potential for independent living ideas might be…anyway I'm here now as si_roberts or I think that should be @si_roberts