marry at a relatively young age. In rural areas this can be the late teens, and in the urban south it's after formal schooling is completed or a solid job secured. In general, marriages are not arranged, although there are strict rules that apply between the castes.
The respectable way to marry, known as mepadik, is when the family of the man visits the family of the woman and politely proposes. The Balinese, however, like their fun and often prefer marriage by ngrorod (elopement). Nobody is too surprised when the young man spirits away his bride-to-be. The couple go into hiding and somehow the girl's parents, no matter how assiduously they search, never manage to fine her.
Eventually the couple re-emerge, the marriage is officially recognised and everybody has had a lot of fun and games. Elopement has another advantage; apart from being exciting and mildly heroic, it's cheaper.