I have never been asked for 2 id's, as long as you have a drivers lic you will be ok. My son travels with me and a picture id from school is fine to get into the us , canada will let anyone in.
As for another casino near by, you have the brantford casino about 1 1/2 hours away ,west of hamilton, it is nice but no craps. Go in the moring if you want to play tables less people and lower limits too