This is contrary to the very goal that these sites were founded on, the hope that by answering questions in a structured, easy-to-search format, the effort spent answering would be able to benefit people beyond just the person asking.
Don't get me wrong: chat is great. And it's awesome that there are folks willing and able to provide one-on-one help and guidance to budding programmers there. But this should never take away from the work that is being done on the main sites.
If you encounter someone on the main site that you feel would be better off with some hand-holding in chat prior to asking more questions, feel free to invite them in: just drop a link to a chat room in a comment. Be aware though, that they'll need to have earned at least 20 reputationat least 20 reputation on the main site before they'll even be able to chat.