We do in my current club and we did in my former club in Nebraska. Some areas of the country and people groups are more patriotic than others. Some people look for any excuse possible to not do traditional or patriotic things in case an odd person becomes ' offended ' . Heck some clubs even kickoff meals / picnics with an actual PRAYER. That should make the liberals heads explode. We do keep it non- sectarian ( i.e. the Jewish guys insist its not in Jesus' name ).... IMO, if the pledge to the US flag offends you, just stand out of respect to the country you are in and others but don't say anything. Don't be a self centered jerk and sit or kneel or anything else that is insulting.