In such times, your best bet is to download the video and store it on your device. However, having said that, there are times when you would still want to have offline access to a video. Aside from the widespread rollout of such services, another factor that has contributed to the way we consume videos today is the democratization of the internet - making content available on-demand.
With the advent of streaming and on-demand video services, consuming content (music and video) has become more convenient now than ever before.