I expect so: pretty sure I know a few. Being fat and learned helplessness are the traits that jump out at me which they share.
Do you take "choice" to include social anxiety? If a girl can't socialise, is this to be called a choice (since it can be overcome)? Because there are a lot of socially anxious, pathologically quiet girls out there who rarely leave the house. This is because plenty of girls are brought up being praised for being demure, meek patients, rather than active agents. The problem is this creates a self-selecting sample: you never see these girls, so you're unaware of their existence.
It is complicated by the fact that it seems once you're an involuntary celibate past a certain age where the flush of teenage hormones has died away, you are probably going to quickly become a voluntary celibate. Apart from the hormonal stability, you suddenly have a job to hold down and a thousand and one more immediate responsibilities to address. This has definitely happened with the virgins I know who are in their mid- or late twenties.
Inb4 the thread gets hijacked with tedious debates about religious parents stopping their daughters from dating.