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.
If you work from home, you can spend all that time you would have spent commuting finding friends instead. Go to bars, find common hobbies/interests, join a rock climbing gym..
