The problem is yiu can only talk about this generally.
Talking generally, yes I believe its to old.
My teenager takes alot of energy. Uni visits, applications, emotional and practical support learning to navigate being an adult.
I have found it the most intensive time, apart from the new born phase. It's not what I would want to do in my 60s.
Having a parent in their 60s in your teens isn't much fun either. Having a fairly high probability that your parents will die in your 20s, isn't great either.
And this is all assuming you have the energy to look after a baby and toddler into your 50s.
I know people will say 'well Susan had her at 46 and has the energy' or 'I am fitter now than I was when I was 26'.
You may live an extremely fit and active life until you are 100 and the child is middle age. Someone else could die in their 30s. Doesn't change the fact that generally people don't have as much energy when they are older. It doesn't change the fact that chance are higher, that you will die while the child is still relatively young.
Someone else having fun a perfectly healthy baby or if successfully at that age, doesn't change that risks are increased for older mothers.
I donr judge older mothers, because I think we all have to make decisions we are happy with.
But generally, I do think it's too old.