They can , and some do a proper job.
However, most even so called working strains are bred for rabbiting and ratting.
But, if you get the right type,take your time with him/her, and cross your fingers, they can be a useful dog to have around.
I can understand why they are not more popular amongst digging lads - easy to ruin, some are temperamental to the point of winding you up.
And let's face it, they aint as macho looking on the lead as a bull headed Patt.
Best, when crossed with Lakie IMO, or 3/4 Beddie, 1/4 Lakie.