A little bit off topic but definitely related. Over protective parents don’t help their children, they hinder them. Children need to experience the world, and often aren’t allowed to. It starts with the introduction of the baby to grandparents and other family members and family friends. The baby in the OP is now five months old and not allowed to be with anyone other than parents and grandparents. Socialisation starts early, it starts when the baby starts to ‘take notice’ and is to be encouraged. During Covid all baby/toddler groups were closed and only key worker children allowed to go to nursery. And what did we learn? We learnt that the socialisation of young children and the language development of young children was hindered, badly in many cases. If we had but looked, we would have undoubtedly found out that immunity to common viruses was also adversely affected.
Children are born into society. Initially a baby will be cared for entirely by its parents, but it should quickly be moving into wider interactions and experiences. These parents are over the top protective. The grandparents are adhering to their rules, after all, what choice do they have? But the rules are over the top and unreasonable. Unfortunately the real problem may well come later on when this over protected child starts to interact with others. I hope the socialisation doesn’t suffer, but it may well. And we wonder why so many children have mental health issues today. Over protective parents are one of the reasons.