I decided a few years back that everyone who was my age now when I was younger and looking at them as examples were damned liars. They were faking responsibility and maturity the same as we are now.
Do I look 38? No not really I tend to get guessed younger.
Do I act 38? I don't know really. I mean I have a lot of fun and goof around quite a bit but I also handle my business when the situation calls for it. I am a parent to my children but we also have fun together but they also know the difference between me joking around and being "dad" which helps us keep open communication, I am also completely honest with them so if they ask a question they get the answer with no bullshit.
I suppose that's what an adult should do and be, so that's what I do