Should we hide things from loved ones....

Or an even better title treating our seniors as if they are stupid...is that what we should do to spare or save their feelings. The truth will come out you know...particularly if a loved one is going to pass. I have I done the right thing by being totally honest with my Grandmother? I think so...others may not, but why? Why should I lie to my best friend, maybe I should paint a wonderful lie but would she not be more let down when expecting a brighter out come...because of my lie. My concern is for her...the truth is what she needs to hear from me.You can lie but I will not.