How many people are acceptable to attend a house viewing?

[JinoPino]

My parents are viewing a house this week and have asked me and my DH to come along too; I kind of feel like 4 people is a lot - especially for a first house viewing.

Coming along on a second viewing feels more appropriate.

Aibu?

Thanks all!

To update, they viewed it just themselves and liked it. They're not 100% sure so they've booked another viewing for DH and I to go too.

I did say we'd go to a 2nd viewing so I've got to! Still think it's a waste of time though.