Side note, I will never understand how someone could think 7 weeks is too long notice 😂If someone invited me to a party with 2 weeks notice there isn’t a single chance we’d all be free!
I’m going to a 1st birthday party on Saturday that I was told about in November. I just put it in my calendar - that’s what they’re for.
But you aren’t all invited so you don’t all need to be free. For most kids parties, it’s one parent and the child who was invited, not the whole family.
My kids are older (primary aged) and the invitations are usually sent two weeks beforehand. If they are sent too far in advance, it’s very likely the invitation will be accepted at the time, but if something better/more important comes up, they will not make the kids party, by which time you will have organised food etc.
A recent example, a child was invited to a party, the child’s mother accepted on the child’s behalf. A week before the party, the mother sent a message to say her older child was playing a match and they were all going to support the older child. Another mother accepted but then got tickets for a rugby match and wasn’t available and another child wasn’t well in the days coming up to the party.
Seven weeks beforehand is far too long for a kids birthday party unless it’s your own kid!
It’s different if it’s an adult party when people have to travel, arrange childcare, book accommodation etc.