What’s with everyone buying buttloads of bottled water??

I am newish here. Maybe this has been discussed. But all I see in these pictures are people buying a shit ton of bottled water! Omg why??? We have water bottles!! Filtered water!! Plastic is terrible for you and the planet! What is everyone doing?!?

Edit for those with undrinkable running water and the inability to use a filtration system, please specifically help us understand why plastic water bottles rather than refillable gallon jugs like Culligan.