Respuesta :
Because they pay for multiple things Roads, houses, etc. also, they help with heath care.
Since the governments take money from us in the form of taxes, they are supposed to, at least, provide us with all the things that a are basic, considered human right (education, freedom), or even services that are illegal when not made by the State (such as law enforcement).
A government should work for the people, specially when it takes money from the people.