My DS4 was mobile early but he listened, so if i said 'don't touch' he never touched. I remember going to a church mum+tot group once when he was around 9/10 months and cruising and the leader asking me 'can you make him just sit down?' Now at 4 he walks nicely, held my hand etc.
My DD23m is a nightmare! I'm ashamed to admit she rarely is out of the pushchair because she won't hold a hand, won't wear one of those harness things (sit on the floor and doesn't move), does not listen to any instructions (not that i really expect her to at nearly 2, but in comparison to DS). She would be the child riding the elevator alone if i let her 'roam free'. Thats not to say anything against you Sea Blue - just that i understand.
but finding exactly what it is that will occupy her for long periods is exhausting me.
I have this problem with DD too, She can find 3 random toys and play from 9-3 with them but if i find her something she isn't interested.
I know a child like DD, a girl who is 4, at 2.5/3 she would get a stool, take it to the front door, undo the 3 bolts (they'd added 2 because of her!), go downstairs (in a block of flats) and knock on her friends door at 6am. Her mum was asleep the whole time. Sad thing is i think she is probably gifted but her mum once said to me 'i can't wait till she is 5 so i can put her on Ritalin'....