What you can use a student grant for depends largely on where the grant was issued from. There are also personal student grants given out that may have their own sets of rules and restrictions for what may or may not be purchased with the student grant money that they distribute.
Toilet Height. Whereas the height of a standard toilet is 17 inches or lower -- 14 1/2 inches is a common height -- the ADA guidelines mandate a distance between 17 and 19 inches from top of the seat to the floor on a handicap-accessible toilet. If the toilet is for use by children, the height must be from 11 to 17 inches.
Most toilets offer a sitting height somewhere below 17 inches, typically 15 inches, and while it is possible to place the toilet on a plinth or other platform, purchasing a comfort height toilet negates the needs to have to build any extra elements in the bathroom. These toilets stand between 17 and 19 inches from the ground.