I work with puppy- people (new owners and those wanting more support with this puppy than with previous puppies) every day.. and yes, there are an awful lot of doodles.
Currently, I would say at least 50% of our service users are cockerpoo or labradoodle owners, with a handful of less common doodles - Bernadoodle (Bernese Mountain dog), St Berdoodle (St Bernard), Sheepadoodle (Old English Sheepdog)... i think there was another one, I forget now.
These are the people who think a poodle x is somehow automatically going to be a really easy to train, excellent family dog.
Probably the people who in previous generations thought that cocker spaniels, labradors and golden retrievers were automatic, easy to train, ideal family dogs.
Some are under the impression the dog will also be hypo-allergenic, won't shed, won't cause a reaction. They are almost always shocked to discover this is not true. Even in an F1 x (and many people are totally unaware of what generation/type of cross their doodle is!), coat type, shedding level etc are not guaranteed, and many types can occur in a single litter!
Some for some very strange reason, have assumed 'hypo-allergenic' means that the coat is easy to take care of! I don't know why, but they are always pretty shocked to find they have to do a lot of grooming and that throwing the pup at a groomers every six to eight weeks will not absolve them of any/all grooming duties between visits, and that in reality such a dog may need grooming daily, with a bath and haircut every couple of weeks!
Absolutely tons of people THINK they do not want a poodle, they think poodles are yappy idiots, not proper dogs, hard to train, hard to groom...and whilst some of that is true (but they are far from idiots, and definitely proper dogs)... it is STILL true for the crossbreeds!
I don't think anyone I have talked to has actually been aware of the true traits of either cocker spaniel or poodle, and are shocked to discover that both like to carry things around in their mouths, both can be barky, both need a lot of grooming, both will resource guard very easily if not taught to retrieve/swap/drop properly, both are very busy, worky, intelligent dogs who need a LOT of input.
And of those who have... they seem to think that a crossbreed guarantees you ONLY the best traits of each breed... so the idea that they may actually get the worst traits of each breed is absolutely a spanner in their works!