Hello hi I am an age regressor. I have a tumblr that I use to browse the agere tags. Here are my two cents if you'll have me. Also I'm not even an
armchair psychologist let alone someone with a degree, and all of this is personal experience/stuff i've witnessed
A lot of the animosity the agere community has for ABDL/DDLG seems to stem from an aversion to sex and/or kink combined with the understandible fear of being non-consensually sexualized. For many, agere is a trauma response born from problems at home growing up, bullying, generally turbulant and unsafe situations. Age regression is how their brain processes and heals from those traumas, and being little is a safe space where they can re-write those experiences in a context where the traumatic things can't happen to them again. They don't consent to being a part of someone else's kink, and it's made extra uncomfortable when the said kinks fetishizes a lot of what they do as a trauma response. This may also be like agere tumblr specific, but a lot of the blogs i see who are very adamate about not wanting to see/interact with kink accounts are minors, who for obvious reasons are justified in feeling that way.
As far as adults are concerned, I'm personally very conflicted? I'm not a kinky person let alone a sexual one, but a lot of my partners are. None of them are abdl or ddlg, but they've accepted me in all my asexual glory. They understand I'm scared of sexual intamacy and that i'm not ready for it. They also understand that despite some of them knowing/dating people into diapers that I don't want any part of my regression sexualized. They know my boundries and respect them. As their girlfriend that's all I could ever ask for. kink and sexuality are frowned upon in every agere tag, yet here I am. the most ace girl in a polycule full of kinksters and yet my boundries have never been more respected, and haven't once been crossed. I've never felt safer with this side of me around anyone else.
Kink's not inherently bad imo. It's sorta a lot like having favorite ice cream flavors. I personally don't understand why anyone in their right mind would activly want pistashio, but i'm not going to fault someone for it. It's what they like, so they talk about it's radical pistashio-ness with other pistashio fans. That said, I'd rather stick with cookie dough thanks!