Congrats! and Congrats!
I bought my SPM when my twins were <1yo and ... for who knows what reason ... I didn't learn to ride it for 2-3 years. My twins are 6, I don't think I will Audax for another 5 years (even locally) but I have found that early morning Sunday rides are A Thing, as long as you can get back for a late family start to the day.
Also, 5 is a year or two away from going riding with the kids!