Hard work is a way of life. The standard wage for a day laborer is a single silver piece. In agricultural regions, most people work from sunrise to sundown, with breaks for, meals and naps.
Common folk working for the daily silver piece might resent adventurers, whose economy functions at an entirely different level. But common folk seldom risk death and dismemberment on a daily or hourly basis. Given the number of adventurers who wind up dead long before their day-laboring relatives, the adventuring lifestyle is viewed as an occupation for those who like to gamble with their lives for potentially great rewards.