The best way is keeping the original

I have two brothers in my family, my father was passed by long time ago, my mother is eighty four years old, her health is quite good, she lives in fourth floor without the lift, everyday she is holding the stairs to comes and down many times by her own. But we found her mind is not shape since this year, as her age we understand the case, just keep it as the kid to her.
Normally when the birthday for each members of family we would like to send the regards by SMS or messages of wechat for the celebration, we have never forgotten to show our loves at the day each other, sometime I would like remind my mother in one or two days early by set phone for my two brothers. This Jan 18 is the birthday of one of my brother, my mother called me at Jan 15 at the early morning, She said today was your brother’s birthday, don’t forget sent messages to him, She was reminding me this year I was surprised, no, not today, I said, but she insisted to say, yes it is the day, I hesitated to say, ok I will send my best wishes instead of her to him right now.
I praised her and encourage she is great to know the birthday of my brother, even two days early, I don’t want to tell her the truth, as we know all the old man or women, they don’t want to accept their getting old physically, so they are so sensitive to have such reaction when they are doing wrongly, the best way is keeping the original, let them happy to enjoy every moment as they can. I think this is the good way to show our loves for old generations.