What qualifications? Years of experience.
I volunteer for Dog’s Trust, and I’ve adopted from them too. Lots of people do think that any home is better for a rescue dog than being in ‘kennels’ but that really is not the case. There’s a reason lots of these dogs have ended up in rescue, lots of them will not have been from a loving home that just couldn’t keep them anymore. In a lot of cases they will have been bought as puppies, ostensibly much wanted by well meaning people, but in reality left home alone because people have to work etc, left untrained - missing the perfect puppy window of opportunity to set behaviours, meaning they are perceived as having ‘issues’ etc. Or in some cases neglected or abused. Covid lockdowns will have meant lots of people have bought puppies they now can’t look after as they need to go back to work, and they may be unsocialised due to the restrictions we were all living under. Places like Dog’s Trust are interested in getting the right and proper home for the dog not getting people the dog they want or think they would like. However, it is always worth rescuing, it is very rewarding, for human and dog. But though many visitors to The Doghouse seem to understand they may have a long, long wait for their perfect puppy from the right, ethical, breeder, lots still seem to think they should be able to pick up a rescue dog immediately because, ‘these dogs need homes’. Actually, ‘these dogs need the right home’. So, yes, you may wait a long time for the dog to come along that you can provide the perfect home for. If you’re prepared to wait for your rescue dog as long as you might wait for a breeder (with long gaps between litters, waiting lists etc) to have a puppy ready, then you will get your dog in the end. From first deciding we wanted a family dog, to getting our first, Dog’s Trust Labrador, we waited about two years. You can’t go on a waiting list as such with DT as they’re just far too busy with dogs coming in constantly to spend TE&M on ‘matching’ so you have to visit often. Lots of other rescues will be the same. But, if you have a breed in mind, often breed specific rescues do operate waiting lists for matching, which may work better for you if you’re unable to visit often. Once we had our boy, who was little more than a puppy but already had issues, we waited another two years before a suitable companion became available. That time the ‘companion’ was actually two female Labradors from LRRSE. They were adorable, fitted in perfectly with our imperfect boy and had them until they both passed away. So our boy needed a new companion who could deal with his foibles. Our last girl passed away in April 2018 and it took us until February 2019 to find our old greyhound girl, from Dog’s Trust, who is a delight. So, TL:DR, Yes they do know what they’re doing. It might take a long time, do it anyway, it’s worth it.