Not Legal Advice: Yes. As per UT Admin Code R81-7, no person under the age of 21 years may enter a state liquor store unless accompanied by a parent, legal guardian, or spouse that is 21 years of age or older.
A sign notifying the public of this rule is posted in a prominent place, on the doors or windows of the state liquor store.
In Utah, alcohol sale of is controlled by the state. On-premise sale of liquor is allowed by restaurants from noon to midnight and beer from 10am to 1am. Private clubs can serve liquor the same hours as beer is allowed for restaurants.
Off-premise sales vary but are all state run and close no later than 10pm and are not open on Sundays.
Be a role model for your children. Get tips on demonstrating your own responsible attitude to drinking at Drinkaware.