SS is 6 and in first grade. BM and his step-dad feel very strongly about putting him in activities constantly. DH and I believe that organized sports and other activities have their place but aren't the end all, be all of how to spend time with him. We have him EOWE. The CO doesn't say anything about sports and interestingly, BM has stated that she might have to have it updated to include something about sports.
I am just looking to get a feel for what is considered reasonable for this topic. We have asked SS what he wants to participate and have always supported it, both financially and taking him to activities when they take place during our weekends, but by the same token, would also like to spend our time doing other things.
Re: Sports/After-school activities
In our 4 days a month that we get him we have grandparents that want to see him, family activities, one on one time with DH, etc that we need to make time for. We will support his extra curricular but not at the determent of our family bonding.
I don't think you should be obligated to take him to activities unless you agree to signing him up. BM shouldn't sign DS without consulting with your H, then expect you to carve time out of your time with him.
Many kids sign up for a ton of activities while they are in 1st and 2nd grade. It's a great time to try everything out, and by third grade kids have narrowed their activities to what they like and are good at and the extra-curriculars are cut way back.
A lot depends on your DS. What does he like? If his passion is sports, for example, I think even though you are not having a conversation with him, if you are at the ball field, cheering him on, that is developing a positive relationship with him. Ditto with an activity like scouting where the parents are actively involved. It would be different if your interaction is limited to dropping him off at a class and picking him up an hour later. I would find it odd to insist a kid miss a soccer game that he really wants to play in because you think it's better to take him on a "family activity" like apple picking.
At the same time, don't let BM bulldoze you into revolving your weekends around activities that she enrolls DS in.