This was noted in Schedule 2 - Federal Amounts Transferred from your Spouse - age amount.
The age amount is automatically transferred if you are preparing your return together with your spouses.
This TurboTax FAQ has more info on transferring the Age Amount: https://turbotax.community.intuit.ca/turbotax-support/en-ca/help-article/tax-return/transfer-age-amount-spouse-partner/L414Nsjnq_CA_en_CA?uid=luet2h06