They are DRIVING loafers, they are for DRIVING.
Walking in DRIVING loafers damages them. They are designed for DRIVING.
If you find a pair of loafers that don't get damaged from walking they are NOT DRIVING loafers.
If you have a sports car and want narrow shoes for fast DRIVING, get DRIVING loafers. If that description doesn't fit, don't get DRIVING loafers.
How often does this question come up anyway? I've been here a month and it seems way too often.