Unsophisticated doxastic agents’ are probably able to have reasonable or justified beliefs

Question 1: A problem (or seeming problem) for internalists is that ‘unsophisticated doxastic agents’ are probably able to have reasonable or justified beliefs at times. Do you think internalists can deal with this problem? (One promising way to deal with it, in my opinion, would be to say that the ‘internal’ awareness needed for justified beliefs can be very minimal in some cases–for example, a young child who justifiedly believes that p merely needs to be aware of something that makes it seem true to her that p…)
Question 2: Externalism appears to imply that a person can have a justified belief even in cases where she herself is unable to say anything correct or reasonable about _why_ she holds that belief, or why it’s likely to be true. Is that a serious problem? Or should externalists simply accept this implication?