In my clinical practice I often see people who feel they need to apologize for being introverts, at times they see it as a character flaw to be corrected.
Being an introvert is not the same as being socially anxious, socially awkward or lonely. Introverts tend to have fewer friends, but their friendships are often long term and deep. Introverts tend to avoid small talk; but they love to talk about what really matters. Introverts prefer social interaction in small groups, but are capable of dealing with large gatherings when needed.
Introverts can derive great joy from their social connections, but they need time alone in order to recharge themselves.
Introverts enjoy solitary activities, and are not scared to be alone, nor are they bored. They do not depend on other people for entertainment. Introverts tend to have a rich inner world that provides them with stimulation and reward.
Our society tends to value and promote extroverts. Introverts should not shy away from their natural tendencies. Being an introvert is a stable trait and has a recognized genetic component. If you are an introvert embrace your nature and enjoy your strengths.