Laziness mostly - plastic bags are cheap to make and people tend to forget to bring their reusable bags to the grocery store.
Because plastic bags are cheap and natural fibre bags are more expensive
just because
They are cheaper
You Can Use Paper Bags Instead Of Plastic
Stop using plastic bags and use paper or cloth bags instead. Use bags made of natural materials, and not manufactured ones. Donot litter the bags but use wastebins to dispose of them
using cloth towels instead of paper towels, choosing paper bags instead of plastic ones, using generators instead of batteries and power cords.
We use the plastics for carry the luggages supposethat if the natural fibres do not grow then the clothes of natural fibre will not get ready and if the synthetic fibres will not get ready due to the some problem then that time plastics are very useful to carry the luggage because that time the bags of fibres cannot get
1) Perforated plastic bags. 2) Vegetable or fruit baskets which are made of cane or bamboo,fibres etc. 3) Paper bags with seal.
cyrus
Jute and cotton are made from natural fibres unlike plastic bags which are based on petroleum products. So one advantage is less reliance on oil. Also, waste bags made from jute and cotton biodegrade much more quickly than the biodegradable plastic bags. However, in many areas in which cotton is growing, the high demand for water is causing problems with water supply and also serious soil degradation.
Because they saw yo mama
Polyethene and natural solids from underground
Reusing them. For example, instead of recycling or throwing away cheap plastic grocery bags, buy sturdy grocery bags that you can use over and over again.
Some substitutes for plastic are starch from corn or wheat, corn syrup, ad even potatos.