Because taxes are for the expenses of the government to fulfill their duties for the people. Even though we do not agree to pay them or take it as a burden, we do not have a choice but to support and pay our taxes properly.
So, in fact, we have no way out. Such a puzzle without a break. But already in corrupt countries there are ways to get around it and not pay.
I pay taxes for my country. I want to have more infrastructure built, the children's education should be prioritize and the health of the people is being funded. Off course this is made possible by paying our taxes.