In Washington state, it's illegal to sell any animal under the age of 8 weeks.
That's not even the most important reason. Even if it was legal to sell baby bunnies under 2 months, I still wouldn't do it, even if it meant I could make more money because they would be in their "cute stage".
It's true, by 8 weeks a rabbit has lost most of it's baby cuteness, but the rabbit is healthy and able to handle the stress of being on its own, away from mama and its siblings.
NOTHING can compare with rabbit's milk. It's the only milk of its kind. Goat's milk is actually the most similar, and even then it's missing many of the rabbit milk properties that keep a baby bunny growing so fast. Did you know that a mother rabbit only feeds her babies for a few minutes once a day, and yet by one week the babies have tripled their birth weight?
Baby bunnies are at a very delicate stage in their lives around 6-8 weeks. When mama's milk depletes and she weans them, not all the babies will make it. Some just don't have the proper digestive system to deal with such a stress.
Most Holland Lop rabbit breeders won't sell a rabbit under the age of 4-6 MONTHS so they can properly evaluate the rabbit for breeding and show. It's hard to evaluate a baby when it's young.
It's not unusual to hear about a new rabbit pet owner that got a baby bunny from the pet store, and a couple days later it died. Or it had diarrhea and was in the process of dying. It was, most likely, much too young to be away from its mother.
Before buying a rabbit, from any breeder, ask about their age. Does the breeder wean the babies before they are 7 weeks old? If so, why is that? Do they sell babies under the age of 8 weeks? If they do, seriously consider choosing a different breeder to buy your rabbit from. You don't want to wind up with heartache down the road, when your dream baby dies from just being too young and needing it's mother's milk to protect it's tiny, delicate digestive system from the major stresses it goes though when you bring it home.