Pidj my view is I can't keep him away from every risk in the future so I'm starting young and trying to teach self control and 'no' now. Hahahaha. It's working out well for us as you can tell!! 
Seriously he would go nuts if he was limited to just one safe room, he likes to explore too much and poddle along after me, he loves being in the kitchen when I'm cooking playing with pans and 'helping' with the laundry. But it's horses for courses isn't it? It depends on the house and the baby I guess.
He is mischievous like his Dad was and gives me a big shiteater grin 
when I say no. When he's being really naughty he comes and gives me a kiss and then tries to ignore me!!!! If I remove him from something three times he usually gets the hint. I'm persevering but he's a real character. I like it. I was too much of a pleaser / goody goody at school and I like the fact that he has spirit. AKA is a little bugger!!!!
It's very personality dependent. My sisters firstborn is obedient, listens to 'no', comes when called, is very sensible and risk averse. My sis was preening that she had the parenting lark sussed then she had her daughter who, despite being raised similarly, is a total maelstrom who likes to stick two fingers up, metaphorically, at authority! Whilst her DD makes her pull her hair out she also makes her laugh her ass off.