TSV's big advantage is that, as commonly implemented, the separators are escaped, not quoted. This means that a literal newline (ASCII 0x0A) is always a record separator and a literal tab (ASCII 0x09) is always a field separator. This is the format many databases -- including Postgres -- use for text export by default.

There are some notes I put together about TSV a few years ago that expand on these points: https://github.com/solidsnack/tsv?tab=readme-ov-file#motivat...