Did people wear flare jeans in the 80's?

Yes, both men and women wore them in the late 1970s and early 1980s (1977 to 1983), but to a lesser extent compared to flared jeans being a fad in the mid 1970s (1974 to 1976) when disco was big. The flared jeans had narrower ankle flares in the late 70s/early 80s. But by the mid 1980s, as of late 1983 or early 1984, flared jeans became quite obsolete and were switched to straight legged pants. Still, there are some people today, mainly women, who still wear flared jeans.