Most of the nearby stars are red dwarfs and these present exoplanets possibly suitable for us as far as we know. Yet Earth does not orbit one of these, but a less common yellow dwarf. This strongly suggests there is a reason.
The Sun is pretty much in the middle of the Main Sequence, and so is the among the most common stars ( graphic from Wikipedia is a plot showing 22,000 stars ), and is slightly smaller than average. And since stars evolve through there lifetime, to some extent we are seeing withing exoplanet detection range a certain cohort along the stellar evolution effect. Given the known age of the universe compared to the lifetime of stars, and the statistical distribution of star birth conditions - so, depending who is doing the counting there are going to be far more red dwarfs, and so a vastly higher probability one will be in the very exact configuration that allows for detection ( among a quite a few other observational biases ). See https://xkcd.com/1298/large/ , the JWST will help considerably to improve the sample space. Absence of evidence is not evidence of absence.