Well... I don't know about this.

I'm 70 now. However I can still sort-of remember what 63 was like.

Perhaps it's just me. But I can't imagine myself being in any kind of relationship with a 26 year old woman with 3 kids.

For one thing the kids would drive me up the wall. (My nerves always were easily frayed. And as I've aged they've only become more so.) Plus I can't imagine what I could have in common with a 26 year old. Nor would I have the energy to keep up with them even if I did. I'm quite certain I would quickly become a massive disappointment to the lady as well as to her kids.

But then that's all just me. I presume you have a different perspective. So good luck with it!