Kathryn has a fine line to walk. IMO.
Children's safety is obviously #1 so if either parent is declared incompetent, the children may become wards of the state.
If KD loses TR's support that puts additional stress on her and her yet-very-young sobriety. It's unknown how much he finances but she doesn’t seem too concerned abt life's basics. We know he does provide custodial relief, aka time off. And, I'm guessing he's easily a mark for Kathryn to squeeze additional monies from for extras too.
So, KD needs to baby her sobriety in order to remain a viable parent. And handle TR w velvet gloves bc what affects him, affects her, and her chidren.
I'm keeping my fingers crossed for her. Hopefully, she'll regularly attend meetings, have good sponsors, and love herself. Team Kathryn!