If you tell your friends and family about Bitcoin without giving them any sort of in-depth financial advice and they go ahead and invest, how do you deal with it when the market dips very low and they silently blame you for losing them money.
See mixing relationships and family is never a good idea. I always try to avoid discussing financial topics with friends and family as money most of the times breaks relationships. However, if someone is forcing you for days for some advice, tell them in advance that prices are volatile. They should invest what they are ready to loose. If someone with limited savings asks you for advice related to bitcoins, tell them that it is not the right choice for them. This may appear rude but will help them in the long run.