Yes, Prozap Insectrin X Concentrate is labeled for both indoor and outdoor use. Please refer to the product label for specific application instructions.
Prozap Insectrin X Concentrate does not have an age restriction listed on the product label so is safe for all ages when used as directed for the target pests.
Prozap Insectrin X Concentrate is not for use on anything edible or storage bins. It can only be used in cracks and crevices around the areas the bins are stored. A great product to treat grain bins before they are filled, other storage areas after cleaning, and stored grains is Everygreen Pyrethrum Concentrate. Of course, you want to be sure that storage areas are as clean as possible before storing your commodities. You can review the full instructions and options on page 5 of the product label here.