The prism you may see Age Regression from is one that often is routed in the past and in that past bedrooms were more austere places where you slept and had little over a bookcase or maybe a small radio in them.
Your new-old adult but child bedroom reflects that life which will include some elements from contemporary teen life such as your cellphone that you use to 'connect' to people and maybe a music playing system.
You can try to keep to traditions routed in your childhood but in the end you co-opt some modern ones simple because in the modern world that's unavoidable.
Shutting people out was a textbook emotional response for me for many many years and I guess it can be justified as a means of preventing others actions from hurting your inner feelings.
It seems a lot easier than dealing with their drama or give them another chance to hurt you even more.
I do that sometimes when I get tired of the drama or I know they are gonna say something hurtful I just cut off the relationship cold and walk away.
The trouble was it drifted into shutting people out to prevent any possible hurt learning to deal with relationships.
