We have a teleportation talisman
And su ling can see the future
Maybe mom is luck and find one spirit partner
While it may be neat in theory, taking Ling Qi's mom on an adventure isn't practical or useful. Any site, pill, or trial that would benefit her would be near useless to us, and any site, pill, or trial useful to us would be worst than useless for her, and may actively harm her if she tried to use it.
Furthermore, we've seen that Su Ling's divination, while useful, are still limited sharply by the questions that she can ask and the massive amount of preparations needed. Quite frankly, while Su Ling might be willing to go exploring with us, she would probably balk at the needed time to do proper divinations of safety if we would want to bring our mother.
Getting sites or pills to help our mother is much simpler than using the New Moon map to explore the inner sect. Heck, at his stage of cultivation even Zhengui might be able to act as a sort of psuedo site for a weak red cultivator working on a wood cultivation art. But getting our Mother out exploring the inner sect with us just seems unwise.
Even if she found a spirit willing to bond with her, she couldn't until she is yellow, and that is a long way off if it ever comes. No, I just don't think it is a wise idea to bring a weak red cultivator out exploring in the Inner Sect.