Hi Eladio, This is a phenomenon that is being noticed more and more, and is surely a real trend in the evolution of the language. It is certainly acceptable in spoken English-- since it is becoming universal-- and will no doubt be accepted into formal written English within the next 50 years or so, at the rate it is spreading.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.