  We discuss the apparent widespread presence of Weak-Line T-Tauri stars (WTTS)
among stellar coronal sources detected in the ROSAT All-Sky Survey (RASS), and
their relative number with respect to young main-sequence stars in the same
samples. The approach taken in most of the current literature for identifying
and classifying WTT stars among RASS X-ray sources is based on the usage of
low-resolution optical spectra only and on simple, mass-independent thresholds
on the equivalent width of the LiI 6707.8 A doublet. We show that this approach
is likely to lead to putative WTTS samples which contain a large number of
normal, young main-sequence stars masquerading as WTTS sources. Young
main-sequence stars are known to be the dominant contributor in stellar X-ray
selected samples at the limiting flux levels of the RASS, yet they appear to be
very rare in the RASS samples discussed here. We argue that many of the
putative WTTS sources are actually mis-classified young main-sequence stars,
and that thus there is likely not a true ``WTTS question'' in the RASS samples.
