I have had many cats over the years although Quasar is my only Bengal cat.
Other kittens I have received at 6 or 8 weeks of age. Yes, yes, I was young and foolish.
We picked up Quasar at 13 weeks of age although his breeder would have liked to have kept him another week.
Quasar is FAR AND AWAY the most confident and socialized cat I have ever had. He moved right in like he owned the place, including making a best buddy of our Samoyed dog. He is most social with our dog, hubby and myself but warms up to other humans in his "jungle" within a day or so of them coming to visit.
We take him regularly to hot air balloon festivals where he does quite well. He loves small children and tolerates big ones.
I can't imagine ever taking in a cat under the age of 12 weeks ever again, unless it would perhaps be a rescue who simply needed a home.