Thank you for all the responses, I didn't expect to get so much negativeity and judgement though!
I will try and answer the general themes throughout.
60's - I wasn't being ageist - I know his parents, so know what they are like, active-wise.
No, he doesn't stay at their house, they go to the beach, and stay in a large shared house with 3 x aunty's, uncles, husbands, brother, sons, cousins etc... We contribute financially towards this. He would be 'without' us for a week at any given time (my husband can work from anywhere so he stays as long as possible).
Our house is 2.5 bedroom, with a small living room and bathroom and so can be very crowded if anyone comes to stay.
I am not trying to keep them away for 'months' just would like a bit of privacy and not have to host as soon as I have given birth! Husband doesn't really do chores, and wouldn't expect guests to, so this would fall on me.
Also, they don't speak english and as much as I have tried (evening classes, GCSE, AS level), I don't speaak Italian, so we can only communicate through husband and even then he only says things that won't rock the boat. When they have visited us and they stay it's fine, crowded and a little awkward due to the language barrier, but fine.
I am grateful for them especially because I have no family, so we have noone else, so if child no 1 didn't go to Italy at the end of the school term, then we would have nowhere for him to go. But I am also my own person, I do everything for my family and myself. I keep the house and am the one that will change my work schedule if child no 1 has school clubs, or illness etc. wouldn't have it any other way, so find it difficult when people want to help. I just want to do what is best for everyone and I guess ultimately, it won't be what is best for me!