Is he ready....is it safe

So my cub is quite the little independent baby. More and more he fights with me to allow him to do things that honestly the scared mommy in me feels like he is too little to try to do. He amazes me daily with the things he can do and at times I feel he is moving too fast. I'm supposed to have my baby for a little while and every day he lets me know he is not trying to stay my little baby forever. My little six month old is not content with sitting up without supprt. Instead he thinks it's time to start pulling up. He literally sits in front of the coffee table or his play pen, grab the legs, and attempts to pull himself up to standing. Mind you he doesn't crawl or pulls up from laying to sitting. The thing that tickles me the most is his disdain for being cradled or held. He literally tries to slide down out of my arms anytime I sit and hold him. I guess he feels he has better things to do. The other day while bathing him he took his cloth bath toy and started washing his own feet. When I ask "what are you doing" he simply laughs at me. He no longer lounges back in his baby bath tub. He prefers to sit up so the other day I decided to try and bathe him like a big boy and just let him sit up in the bath tub. I was a nervous wreck the first several minutes and every time he moved I threw my arms in front and behind him to make sure he didn't slip. Each time he looked at me with these eyes that clearly read " really mom I can do this". I loosened up and let him enjoy his bath and that is EXACTLY what he did. He splashed about and played with his bath toys all the while babbling away. He was sad to leave the water. I think it tuckered him out because he was completely ready for bed afterwards. I was so excited for him and couldn't help but marvel at my little big boy. This mommy is going to have to learn how to keep her cub safe while still allowing him to explore and enjoy the wonders around him.