DSS is 9, have been in his life since he has just gone 3 and generally things are all good. I often have DSS in the hols and someday in the week when mum and dad are working as I'm only part time.
Recently he is driving me insane and I'm not sure if it's typical 9 year old boy stuff. So leaving rubbish everywhere, crisp packets on the sofa, drinks bottles in the car, any rubbish he has never goes into the bin always just put down where ever he is seated. Clothing in his bedroom, I've found socks under the bed, uniform flung around his room, the only item that he puts in the wash is slightly soiled pants where he hasn't quite made it to the toilet in time. Also leaving poo marks all over the toilet seat.
Myself and DH are getting very tired now of having the same conversations with him every single day about respect and making sure we tidy up after ourselves. I've explained I need to know if any clothing is soiled so I can sort it out, and how it's very unhygienic to leave poo marks on the toilet seat.
Is this usual for a 9 year old and if so how do we address it to see changes? Its so difficult as he is only with us 5 days out of 14 and obviously rules are different between our household and mums household