My daughter is signed with a few agents right now but honestly the age they start placing kids in roles is when they are around 4. I have had her in this since she was 6 months and even the agents say clients want kids starting at the age of 4ish, they follow directions better and they don't need the parent with them 100% of the time. Don't ever go with an agency that wants you to pay them to represent the child, it's a scam I've been there, done that. Some agencies want you to pay to place the childs photos online at there sight for online request but doesn't work so well. It took longer to post the photo than the photo was up there. Agencies do require composite card and that cn run anywhere from ###-###-####.00 depending what photographer you use. These need to be updated yearly like clockwork. Agencies win't look at the child until they have composite cards done and a cover letter giving a brief description on why your child should be looked at. The child id a piece of meat to them and don't take it personal it's just business.