I often feel like that, Red Rock. My mom died in 1996. Of course, she was cool, in the same way I hope my sons say I am cool. We had our moments, but nothing more than the usual. She missed my sons' graduations, marriages, our houses in Boxborough and Concord, and all of our cycling stuff. The best thing she told me was that to make sure DH and I had a hobby we could do together. This was about 2 years before DH started riding and about 4 years before I did. At the time, my kids were in middle school and quickly becoming independent. How true those words were.
On the other hand, if my mom was like her sister (the relative I have cut all ties with), I wouldn't have hesitated to keep those boundaries firm.
2015 Trek Silque SSL
Specialized Oura
2011 Guru Praemio
Specialized Oura
2017 Specialized Ariel Sport