I only (kinda) stutter around friends and strangers, not my family.

I only (kinda) stutter around friends and strangers, not my family. Ok, ok I made a last post on this subreddit (https://www.reddit.com/r/Stutter/comments/fvni08/do_i_have_a_stutter/?utm_medium=android_app&utm_source=share) explaining my mini stutter(people in the comments told me it wasent really a stutter so I'll call it a mini stutter), and its gotten a little worse, but I only seem to do it ALOT around friends and strangers but when I'm with my family (brother, mom, stepdad) It doesnt really happen, Is there an explination?