You can use a 15 minute break to be with family if you WFH. You can't use a 15 minute break to be with your family and complete a >15 minute round trip.

If you believe being in the office is required, fine, but if that's your criteria for what a "very high dedication" employee is then you'll need to pay more remuneration(or offer other perks) than a business that requires the same skill set and dedication without requiring the employees to be in the office.