I have seen all types come from one litter. At least, to me, their want of cuddling or being a lap cat doesn't appear to be connected with their mother or environment (providing it is not violent and unkind) Of the most affectionate cats I have now are Princess, and Fluffy, which if left to themsleves are arch enemies, and I assure you that the house would be torn up if those two were left alone. I re-homed Fawn today, to a loving family who is familiar with raising cats. Fawn was always there to be picked up an cuddled. Jumper is a character by himself, because he demands to be picked up and cuddled like a baby and will drop off to sleep in your arms if you hold him long enough! But Jumper is not a lap cat. And then there are those who do not like to be picked up and only allow petting and sometimes cuddling on their terms only. Bluzette, Snow Cat, Snow Tiger, and Ophie (Ophelia) are of these examples.

.........wayne