As a parent of two kids who are both past that age, I feel like your perspective on this is all wrong. You’ve given 70+ years to someone else. And you haven’t lost those years at all, since presumably you also have a meaningful day job (and if not, that’s not your child’s fault).
It sounds like you and your partner should work on splitting the load more. You don’t need both parents to look after the kid constantly, you can often take turns. Kids can also watch TV and all kinds of stuff. They also have earlier bedtimes, giving you even more free time.
> since presumably you also have a meaningful day job (and if not, that’s not your child’s fault).
Turns out that you need 3x the money when you need to feed 3x the people, so no, my job is not as meaningful as it could be and while you can't say it is my child's fault, that certainly caused my family status.
It sounds like you and your partner should work on splitting the load more. You don’t need both parents to look after the kid constantly, you can often take turns. Kids can also watch TV and all kinds of stuff. They also have earlier bedtimes, giving you even more free time.