ICE911

We have recently enrolled my son in Cub scouts this year. We are located on the boundary line between two different councils' in our area. One Council is larger and seems more involved with more activities, but he is enrolled in the other council(where his school is located). I don't have any issues with his council, district, pack, or den, however, i would like him to have more opportunities. Is it taboo or acceptable to attend another councils events? We are in a suburb and the more Metropolitan council seems to have more events and resources, but the more rural council seems to be a little more personal and has a larger geographic area with more camps. Is it possible to have him associated with two packs/councils'?