Grass fibers

It would be cool if the grass is cannot be destroyed instantly (exept if have a sword or shears) but when we right click,we collect the grass and obtain 1 fiber with small grass and 3 fibers (and maybe some seeds) with the tall grass,when recolted the grass becomes small

when we try to destroy it takes 4 seconds with bare hand but 1 second with the sword or the shears,when destroyed,we obtain a grass block and some seeds
The fibers can be used to craft rope (2 fibers)which can everithing the string can but we don’t need slime balls to craft the lead