Little gayan
I think Sid asked Sana to stay with him ( perfect chance he got because of lock down and she had no house ready yet ) so he asked her to stay at his house so that she can see how it is to live with his family , and his family can see how it is to live with her . Even though it was not in normal circumstances like no outing , no normal life of work , no Sid’s weekend parties etc but still it was a way to see how to live together outside of BB house (in my opinion ) . They both are surely in the initially stage of their relationship.
In my opinion Sid wants to be 100% sure so trying his best to involve her in his life . Sid’s worries like mine can be that Sana is naive , she keeps saying she falls in love so fast , BF toh banati rehti hai and then her career ambition , she is childlike , not serious types and that she doesn’t want to get married so soon .
but I can be wrong too . Some people have surprised me like Karan Patel . I thought he is not marriage material but he has surprised me .
Sana needs to be smart and sure about her decision of marriage. Then age doesn’t matter .
when Gautam Rode got married , he was 40 and Pankhuri was 26 but she is not naive types and was sure about her decision .
Hope We can see Sid and Sana like Rode and Pankhuri .