I told her, but she was stuck with "I want ML", the money its hers, so...
Problem is not lack of touch control per se, I have touch disabled on both my cameras from the moment I unboxed them, but both R6 and R have enough dials and buttons to be fully controllable without touch, while the R100 has only one wheel and very few buttons (and she'll adapt her EF-S 18-135 with a "plain" adapter, no control wheel, she won't even benefit from the control ring on the lens, as we'll resell the kit RF-S 18-45 to make some money back).
She's using it almost entirely in Program, so I don't really think she's going to mess too much with controls, she just uses it at concerts to have pictures of herself and friends, and some band pictures even when far from the stage (that's why she'll hang on her 18-135).