No. Most grasses have fibrous roots.
tap root system
Corn is a grass, and the grains harvested from this plant grow above ground. Carrots are not a grass but a tap root, and it is the tap root that we like to eat. We do not eat the roots of corn.
Bamboo typically has a network of fibrous roots rather than a tap root. These fibrous roots spread out close to the surface of the soil to help support the tall bamboo stalks and absorb nutrients efficiently.
wheat plant have fiberous root
I would say "no" but I'm not a grass expert. Also I'm not sure if by "most" you mean most species of grass, most individual grass plants, greater than 51% or what. But I do know that there are a whole lot of grasses that don't have a main tap root.
there are two different types of roots. they are fiborous roots and tap root. examples to fibrous root grass.
Tap root
it grows in tap root but some try it is fibres root i recommed that you use tap root thought
IT has a long tap root while grass has short fibrous roots.
tap root
They are tap root
Its a.......... TAP ROOT! :D