My son goes to a half-day preschool three days a week, and he's been invited to a couple parties where it was obvious the whole class was invited. I think it is nice to include everyone, but these parties were at party venues. I want to host my son's birthday party at our house, so I'm wondering if it would be weird to invite the whole class. I'm friendly with some moms, but there are some that I barely know. I'm assuming those people might not come, but is it awkward to even invite them?