I had ivf at 35, own eggs and husband sperm. It's not really a question of ivf at 53, it's a question of having a child and probably leaving them when they're in their late 20s/early 30s. And being in your mid to late 60s when they're very active and need you.
Before a child is here everything is very much focused on what we want, I know because I've been through it, "I want a baby, I want a child, I want this and that". You imagine things so much and then they arrive and completely humble you.
And you think you know what that love will be like, and how hard the early years are, but you cant really. It's an astounding love but also a love that brings so much worry and anxiety, wanting to be here as long as you possibly can for your children and in the best of health for them. At 53 and beyond, health isn't always something you can control.
I'd also presume you'd be using donor eggs as ivf clinics wouldn't use above age 44 ish on average, correct me if im wrong.