Some people have a hard time sex with a Japanese escort. Some of them don't speak English, so communication is essential. For example, you might want a Japanese escort to light a cigarette for you. If you're not interested in sex, you can simply ask for a hand job. The staff at a Japanese escort service will speak English with an accent.
As you'd expect, the sex industry in Japan goes by a variety of names. Pinsaros, for example, are bath houses where customers are serviced by staff. Other names for such businesses include soaplands, pink salons, and esthetic treatment parlors. There are even themed versions of these businesses. Freelance sex services are available through various deai websites. Many businesses related to prostitution are voluntarily closed to foreigners. However, others cater specifically to foreigners.