You are not being taxed again on your income. Your daughter is subject to "kiddie tax," which means she pays tax at your tax rate on unearned income in excess of $2,600 (for 2024). As Hal_Al said, taxable scholarship income is considered unearned income for the kiddie tax. TurboTax needs some information from your tax return to fill out the kiddie tax form, Form 8615, and calculate the tax at your rate. It is not taxing your income again. It's applying your tax rate to some of your daughter's income.
