Thread:Ultrasonic9000/@comment-30176971-20190621122550

I suppose Chuck was busy with his research, but he wasn't so busy that he could never spend time with Chris. I guess Chuck spent time with Chris occasionally, but not all the time.

You know, there were moments that showed that Chris had a close relationship with his grandfather like in episode 39. From watching Sonic X, he seemed to be one of the few people I felt Chris had a close relationship with.  