Ahaha, I appreciate your humor, cherished wanderer.

I am going to make several assumptions about you, wander. I am going to assume that you are a minor. I am going to assume you don't know about me and what I do. I am going to assume this is the first time you have interacted with me. I will answer you honestly and with dignity.

Somethings to know about me,
First: I am a Sex Worker (SWer), that means I offer services and products that include things that are sexual in nature.

Second: This space is associated and designated regarding me as a Sex Worker. While this isn't for that use, the subject will come up.

Third: I love everyone and give that love and compassion and understanding, and do my best to do least harm and do what I can to be as accessible as possible.

Here is somethings I understand about you and your perspective from what you wrote:
'Minor DNI' indications are very upsetting for you. You view it as a form of stigma or discrimination. Ageism. Which is valid.

You are likely a very friendly and curious person, so I am affording you a long answer that you deserve and would find joy in.

Here is my answer to your question:
'Minor DNI' is an indication that was originally born from a standard that was created from a want to self-regulate adult spaces when the internet was very new. It was born from wanting to signal to people "Hey this is an Adult only space!", and in these spaces were exclusively sexual things for a time. It is important to understand the core of it, as it is for why I have it on my page, is to separate minors for matters of adult sexual fantasy and interaction in order to protect them and you.

Speaking from an extremely personal and reveling anecdote, I did not respect these warnings and indications, and I was emotionally and mentally scarred for that. There is good reason these wards exist.

Likewise, this label has been adopted for general use to make adult-only spaces for a variety of other, non-sexual reasons. I have heard a gambit of rationales, but ultimately there is three philosophies:

1) A want to protect children from other matters that would be a harm to expose them to until they reach the age of majority.
2) A want to protect the space, for a want to keep it "a certain level of maturity".
3) A want to protect minors from other adults.

The first one is already easy to understand, just swap "adult sexual fantasies" with just about anything and you got the principle.

The second one is more at the core of how you feel, when I was a minor I felt that I was very mature for my age and wanted to be treated as an intellectual equal. And when I was I thrived. Whether or not I was is irrelevant, all that must be respected is people have a right to make boundaries regarding their spaces. Know that I do not exclude minors from THIS retrospring because I believe you to be too immature, it is for want of protection. You can and always have had the option to go to my main retrospring, which you can find in my bio.

Lastly, thirdly, is the most thorny. There is this fear of abuse from adults towards minors in either emotional or sexual or both. This is an understandable fear. Many of us are victims of grooming or sexual abuse as children. Some of us are afraid of doing harm to a minor who approaches us anonymously, wanting something from an adult that at the most needs to be asked of another minor, if at all. I put the DNI designation for minors also for this principle, I am doing all I can to reduce the chance. It is never zero, given I can only do remote work, but it is something I will do all I can to minimize.

I want you to know, lastly, that I respect you, and you are a wonderful gift to this world. I am sorry that I did not indicate more clearly why I have this boundary. It is not because I do not want to interact with you, it is because in this space and context, I cannot.