Agreed, some of the first time dads are definitely going to be in for a shock! Having a newborn is like having a massive bomb thrown in your life, including all the associated household mess 😜
I think it varies hugely from family to family but I never left my DDs overnight until they were quite old - my eldest was a year, my youngest 15 months. But I bf both my children so it just wasn't feasible. On the other hand I know (ff) parents who have left their babies at parents houses over night from a month old and it worked for them. Someone I know went to a festival for a long weekend when her baby was 2 months old and left baby with her mum for three days. Have to admit I was a little 🤯 about that as couldn't even imagine leaving my little one at such a young age but each to their own, obviously I never said anything as not my baby, not my business, and she was happy with it.
One of my biggest annoyances about lockdown has been not being able to go to the cinema or out of evenings meals etc or meet up with friends on an evening. When baby comes that will all go out the window! I don't do it that often anyway as can't be arsed to be sociable a lot of the time but would be nice to have the option 🤣 i am planning to breastfeed though and tbh that does mean no evenings out for a while. It doesn't bother me but I know it bothers some people who miss that freedom. I generally find when baby is small that I don't want to leave them anyway. Of course you can always pump as well though I never bothered until I went back to work and had to do it.
I guess what I am saying in a long winded way is that everyone's experience is different, so in some ways there's no point making plans about what you will do when baby arrives as who knows what sort of baby you will get. Some babies are just more clingy than others, some have colic, some are super easy going, some are massive boob monsters etc. About the only thing I can say is have low expectations for what you can manage in the first few months and hopefully you'll be pleasantly surprised and have an easy baby 😂