>>299712
>a great mother, if for no other reason than she has likely been one literally hundreds of times
Silly headcanon needs more supporting evidence to be taken seriously.
Celestia is an idiot. Case in point, despite thousands of years of experience, she still acts like an airheaded teenager in Celestial advice.
She is still continuing her old habbits that alienated Luna in the first place, leading to the original NMM incident. Case in point, Luna not being invited to Cadances wedding and the "friendship problem" Glimglam had to take care of.
Every time she shows up in the show, Celestia either just sits by smiling, gets her flank kicked or makes terrible decisions. How the fuck does this make her a good mother?