My 2 year old has been invited to a party (small outing) by a mother of his friend in the crèche. We don't know her other than sight and neither does he. There will be three 2 year olds and two adults (their baby sitter who DS nor us have met). Parents are very, very strictly not invited! They are going to an attraction within a mile from home, taking public transport.
AIBU to think that it's strange for the parents of a 2 year old not to come?