When Zehre Avci, a daughter of Turkish immigrants in Belgium, was nine years old, she was sent to buy a coffin for her grandmother, who had just passed away. “I was crying,” she recalled. But she had to go, because “there was no one else to translate.” As a young teen, she led Turkish immigrant women with abusive husbands to get help for the same reason: There was no one else taking on the challenge. Avci, now in her early thirties, said those experiences — doing what others cannot or will not do — inspire her current work in Brussels, where she has joined a social services agency dedicated to bridging the religious, social and economic gaps between immigrant women, many of them Muslim, and the wider Belgian population.…