Actually, depending on how you program them, they may be almost legal on FRS. You'd have to set the FRS frequencies in simplex mode and at low power. The main variance from the FRS rules would be the removable antenna. On the other hand, if you get a GMRS license, your grandson would also be covered by your license. However, since the 888 is not FCC accepted for GMRS, you would still technically be in violation of the rules. I would not suggest you violate the rules (it is against the policy to do so on MyGMRS anyway). But, you might goggle around a bit and see what the risks are of using improper equipment are on FRS or GMRS