Why do some milk straws have to be designed in two stages?

Because some people want to be gaudy, bored and creative, and want to take off their pants and fart to win a patent award, however, after the creativity, many people's reaction is not as good as before, because the telescopic straw has been straight since it was pulled up, and the drinker feels limited in the process of drinking. The experience was really bad. He was always worried about joint instability. He misses the design way of breaking the bellows and folding, and it is more comfortable to adjust the drinking angle at will. It's not as ugly and uncomfortable as blowing smoke (and it's also convenient for packaging). Not only do normal people have a good experience, but children, patients and elderly people lying in bed are also convenient to drink and not easy to spill on the bed. It is strongly recommended to give back good things to consumers.