Complex sentence: At age 14, Jazz Jennings is a prominent figure in the transgender youth community after beginning to publicly transition at age 6 following a Barbara Walters interview, since then she has spoken on a national level for transgender youth.
Split into simpler sentences: At age 14, Jazz Jennings is a prominent figure in the transgender youth community after beginning to publicly transition at age 6 following a Barbara Walters interview. Since then she has spoken on a national level for transgender youth.