Wisdom of a 15 year old

My son isn't into church. It is my fault really. I didn't raise him any church because of my own issues with religion. He now considers himself agnostic. He doesn't necessarily deny the existence of God, but he isn't certain of it either. The thing about him is that he is very much like me in that things must be proven to him. He relies on logic and reasoning. Fortunately, I have always had a belief in God, I just put Him on the shelf for a number of years. Although he isn't "religious", we have had some interesting discussions and I am not sure that he will stay that way. I think something profound may have to occur before he can see God's work, but I have hope and I pray for him daily. Last year he surprised me by asking if he could go to church with me some time. His father's funeral seemed to have an impact on him and I believe he is at least curious and perhaps searching to some degree. He decided he would like to visit a variety of churches and just see how they are. He has since visited Baptist, Methodist, Catholic, and Episcopalian churches. I have never pushed him about going, but thankfully his piano teacher (who happens to be the choir director at my church) has been getting him involved in playing his clarinet. I think I have influenced him to some degree because I have answered his questions about what the Catholic faith teaches compared to other religions. He tends to agree with my viewpoint and he has commented about Catholic and Episcopal services being more reverent and holy.
He asked me the other day if people ever complained about the length of their church services. I said that sure, some do. I said that is probably why several people didn't show up to the Easter Vigil service. He said that some girls had been complaining about it being so long. Sure, it was a little over two hours, but it didn't seem like it to me at all. It was so beautiful and special. Josh then said, "Isn't going to church about worshipping God?" I replied, "Yes." He then continued, "So why should people complain about the length of their service?" I told him I didn't know. And when you think about it, it really is a good point. I think that if you're worried about how long the service is, then you're not fully participating in it. It becomes rote. It becomes a resentful obligation in some cases. And I find that sad. Is God asking too much that we give our Sundays to Him? I used to worry about whether or not I could make the commitment of giving up my Sundays for Church. I enjoyed my free time on weekends and I didn't know if I could make myself go every week. But as I started going, it has never felt like an obligation. I want to go. I feel off if I don't get to go for some reason. So now I look back and laugh because that was my only major stumbling block about coming into the Catholic Church. It now is such an insignificant thing. Josh may not be involved in religion, but he seems to get it.