My young man still enjoys time with Mom

My 11 year old son wants me to go on a field trip with him. WOW!!! He is in the 5th grade. And he still wants his Mom to go on a field trip with him. I think I'll go, you never know how long it will be before he decides he is to cool to spend time with Mom, well, that is in front of his friends. Hopefully, we'll not have that problem.