So I have like an embarrassing question to ask because I’m curious.
Like when littles go into little space or caregivers go into cg space.. how do like they know?
˚₊✩‧₊ Hey there Little One!! There's no such thing as an embarrassing question, I promise ( ◜‿◝ )♡ (at least not here with us!) So feel free to ask anything you'd like to know! And onto the explanation~
Headspaces ! (Aka mindsets!) When someone goes into their caregiver/regressor mindset, it's different for everyone! Some people can distinctly tell those headspaces apart from their usual everyday headspace, and others can't really! All experiences are valid and there's no reason to change what works for you if it makes you happy and comfortable!!
But to answer your question: people feel mentally younger & when they're regressed, so they're able to tell that it's different from their normal mindset! (Which is most common when people distinctively separate regression time from their day-to-day activities, since their mindset would change) There may be other factors since everyone's life is different and regression will be different for everyone! (Some people also can't separate their regressed mindset and adult/big one! So they're always at least a little bit regressed/mentally younger, while doing tasks! In these cases it's sometimes harder for them to tell it apart!)
With caregiver headspaces (it's a bit harder for me to explain so I'll talk about my personal experience!) For me personally, there's no difference in mentality! My caregiver attributes are just a part of my personality! But there are times where I'm more prone to wanting to take care of someone!! (Think of it kind of like ?? Cute aggression?? Like when you see something cute and you want to squish it.) So it'll just be a random urge to take care of someone, or the habit of always doing small things for people and looking out for them! But I'm more so a way a parent would ! (Like for example, all of my friends are shyer than me so I always order for them when we go out!)
I hope this answers your question!
Please Remember That This is all from my own knowledge and experiences and it can be different for every person!! These reasons here wouldn't relate to everyone because people are unique!! And their experiences are also unique to them!! If anyone has anything to add in the comments, please feel free!! Just remember to be kind !!