There's actually no problem in this relationship,
a healthy smart boi who gives his consent and is the one giving the go signal
a woman in her 30s who's never had a boyfriend since she devoted her life to her adopted daughter, who now (grown up) tells the mom she should date.
It's like all the stars aligned for this and she's like should I?
Yeah you took care of him as a kid, but now he's a healthy adult who knows what he wants. Good thing the guy is giving her time to think about it as well,
that's literal perfection when the younger one is saying "I will wait for you"