A well built hybrid, such as the Trek 7500 FX can go anywhere. The sloping top tube hides the geometry, but the 7500 has the geometry of the classic "fast" touring road bikes of the 1970's and 1980's. The combiantion of stable geometry, fat tires, and a "hands higher than saddle" riding position makes even off road riding on a smooth trail quite pleasant.
My "beef" about hybrids is that many companies treat them as 2nd cousins to road bikes. So, they are often "speced" with lower grade frames and components than a road bike in the same price range. Twenty years ago, "fast tourers" were considered premium quality bikes, and often combined a company's best frames and best components.
Likewise, in the USA, the selection of tires in sizes such as 35mm or 38mm is often limited. Yet, a store might stock ten different tires in a silly size, such as 23mm.
No one should own just ONE bike. But, if someone had just one bike, a high quality hybrid is the one bike that can be used for commuting, fast touring, and recreational riding, both on pavement, and on dirt.