Nikaah & Marriage Issues

Teaching the children to be transparent with their parents

Q: Please can you recommend what age is appropriate to teach a child their body parts? 

My 3.5 year old only knows it as her private area. And in the shower I only point to all the areas no one is allowed to touch. As she is getting older and ready for school soon my fear of sexual abuse increases daily and I want to know what I should be teaching her and when? 

I only recall my mother ever talking to me about my own body when I became baligh, and I learnt about the male body when I was getting married. Now though, it's different. There's so much more fitnah. And parents that allow their kids to use screens, these kids are exposed to so much more. 

I just want my daughter to get the correct knowledge from myself and her father here at home first before we send her out.

Singing and dancing on the occasion of nikaah

Q: In 2-3 months I'm getting married. We are Pakistanis so in our culture before the wedding day we do an event called Dholki where people get together and sing and dance. I'm trying to avoid doing haram things. 

Is it possible to use drums at the event? Is it only duff that is permissible? The event will be a female only event. Can we dance? At the nikaah event can we use music with only vocals and drums? 

Making statements like "I will challenge Allah Ta'ala"

Q: I would like to bring a matter under consideration regarding my husband, as he said that "he will challenge Allah". 

It all happened when I told him that I want to take separation from him and I mentioned that Allah has given me this right, to which he said no I can't and first he said I can bring any Ulamas I want he will send them all flying, they cannot interfere, I will challenge them all, to which I said okay no problem but Allah has given me this right. It's almost 10 years you can't look after me so I will go away myself and then he said "I will challenge Allah ". Listening to this I told him are you gone nuts what are you talking, you can't talk like this. He stood firm on his statement and after that I kept myself quiet, before he says something more bad. 

Just to mention, he was in his full senses, wasn't angry when the topic started. I keep Ulamas away as he has no respect, but please I want to know what to be done with this statement. 

Also his ibadaat is personal, I don't want to bring that in the picture, but want to mention he used to read fajar at the time of sunrise, which always caused a spark between us. He never use to listen. Now he no more reads, even on big nights and on Shabe Barah he told my son Asar time that books are already closed we don't need to make ibadat. I was completely shocked and explained to my son that we have to make ibadah till fajar. So I'm not sure what is his say in religious matters. 

Please I want to know what is the way forward with it.