The fact that someone else provides support does not obviate the parent's obligation to do so, even if the child does not suffer deprivation. In re J.D.D. , 450 S.W.3d 836, 841 (Mo. Ct. App. E.D. 2014). To put it plainly, "the fact the minor child does not suffer deprivation of necessary food, clothing, lodging, medical or surgical attention because such needs are being supplied by another does not abrogate the parent's obligation."

That presumption, however, is overcome if there is sufficient evidence presented that the parent is unfit, unwilling, or unable to take charge of the child. In the Matter of J.D.D. , 450 S.W.3d 836, 841 (Mo. App. E.D. 2014). "[A] court should not appoint a guardian for a child unless there is no parent available, willing, and able to care and provide for the child." In re L.M. , 488 S.W.3d at 215 (citing In re Estate of A.T. , 327 S.W.3d at 2 ).

Some factors include the stability in a parent's life, the care the parent could provide on a daily basis, the environment in which the child would be raised, the amount of effort made by the parent to furnish any financial support, and the parent's mental health. Id. (citing In Matter of J.D.D., 450 S.W.3d 836, 842 (Mo. App. E.D. 2014) ). "[W]hether a parent is unfit must be based on existing conditions, but past conditions may illuminate the understanding of present conditions." L.M., 488 S.W.3d at 217 (citing In re Estate of L.G.T., 442 S.W.3d 96, 112 (Mo. App. S.D. 2014) ).Viewing the facts most favorably to the judgment and deferring to the trial court's credibility determinations, we hold that substantial evidence supported the trial court's conclusion that Mother was unfit to assume the duties of guardianship.