Announcing what seems like a foregone conclusion, Harris Interactive and Placecast released findings that mobile-based coupons are becoming increasingly mainstream — particularly, among families with young children.

Coupled with widespread adoption of smart phones, driven by disruptive innovations in the delivery and presentation of content, mobile coupons (and, in a related vein, mobile-based customer service programs) are no longer relegated to the world of tech-savvy early adopters.

Of the study, Adage.com reported:

A study conducted by Harris Interactive found adults with children at home are more likely to be interested in text alerts about sales and promotions than those with no kids at home. Of people with kids younger than 6 in their household, 35% are at least somewhat interested in getting opt-in text alerts from favorite businesses, compared to 32% of households with older kids and 25% of homes with no children. (The study, conducted in May with 2,000 adults, does not distinguish between childless adults and empty-nesters.)

That’s a big shift from last year when the same study found mostly young males were interested in receiving marketing alerts on their phones, which coincided with the demographic most quickly adopting smartphones — young, affluent males. Mobile marketing firm Placecast funded the Harris studies both years.

The new data also show that parents of youngsters are also more likely to sign up and redeem coupons via e-mail, online or through services such as Groupon. While the difference is less dramatic, it’s the same group most likely to clip and redeem coupons from fliers, mailers or newspapers.

In the year between studies, the balance has tilted away from men, as adoption of smartphones such as the iPhone and various Android devices has become more popular. Most receptive to mobile offers are still young adults 18-34, and women’s interest has grown year over year.

To see the actual report, click through the link!