Kudos to you for keeping track of each activity and whether the admission criteria is age-based or grade-based. Also be aware this can change over time.
I don't want opportunities, such as camps with entrance requirements to be off the table because of a paper placement.
When the requirements (age/grade) look like your daughter's participation might not be allowed, you may wish to advocate for her inclusion. The only rule I've found to be inflexible was age 16 for medical/hospital based activities (shadowing, volunteering, programs). While many kids are high school juniors at age 16, some gifted kids may be matriculated college students at age 16.
When advocating for inclusion, sometimes simply posing the question may be enough to receive an affirmative response.
Other times, you may wish to sell the idea by stating what your daughter has done as preparatory work, her ability to work well with younger/older kids, and how she may need or benefit from the activity. Her preparatory work may be books she's read, experiments conducted (even ones found in books or online), research (even online research and compilation of links about a topic), related arts/crafts, puzzles, models she's built from scratch or from kits, inventions and "crazy" ideas, essays... anything to demonstrate interest and ability to focus on the topic. To make this type of advocacy an easy task, you may wish to maintain a dated list of her activities/interests, including a portfolio or scrapbook of pictures, and a reading list.
It is great if your daughter works with you on maintaining the reading list and taking pictures of things she's pleased with to add to her portfolio. At some point she can also write the brief advocacy essay, just a few sentences or a paragraph about her interest in the topic and ability to work well with younger/older kids.
