Bitcoin is even safe to invest into even when you do not have saving. That is mainly due to the fact that bitcoin has always delivered profit to its investors whether it be any time period. From a few dollars eight years ago it is valued to more than two thousand dollars. Also as more people invest into bitcoin, the value of bitcoin increases.
Bitcoin has had an excellent run so far, but there's still risks involved, don't sugarcoat that. Never invest more than you can afford to lose. Even assuming that Bitcoin will always recover, a long bear market may still be your downfall if you don't have any other reserves that you can rely on.