I agree with Michelle. I don't think there are any specific breeds that are or aren't suitable for first time owners. Clearly doing lots of research on your chosen breed and choosing a reputable breeder are paramount. Then having done the research, being realistic about your commitment and expectations. But as we all know, individual pups (whatever their breed) are just that.....individuals.
Ruby is my first Cocker. She took ages to housetrain, was quite "bitey" and was a chewer and a garden digger
At 2 years old, she can still be a challenge at times
Prior to her, I have had 2 Labs (in my adult life) The first was the easiest pup in the world! He was housetrained within 2 weeks, didn't chew, wasn't "bitey" at all
His recall was excellent, but he didn't walk too well on lead. He was good with other dogs, cats and people of all ages. He developed health problems at a young age (epilepsy) but lived until he was just over 13 1/2. So when I lost him I got another Lab.......
A completely different dog......he was the puppy from hell!!
Again, very quickly housetrained but very "bitey", chewed everything and very stubborn. He became quite aggressive towards me
It took lots of time, training and hard work......but I got there in the end eventually
He became the most loveable, placid, biddable dog ever
He was great with other dogs, cats and people including my 2 little nieces who were toddlers at the time.
... I should say at this point, my first Lab came from a "pet" breeding. The second came from a gamekeeper who was a gundog breeder. He was bred to work and hand on heart, while he had enough physical exercise I don't think I really understood how much mental exercise he needed
I would say, Ruby is somewhere between the two (temperament wise)......so as long as your friend has done the research, finds a good breeder and has the time, energy, patience and commitment.........and also understands that no two dogs of the same breed are alike.....