I've seen both styles of parenting and both can work. I do a bit of both. The REALLY nice stuff is out of sight, let alone out of reach. The nice but cheapy and not sentimental stuff (and not easy to break!) is in sight and DS can reach these things now. I don't mind him touching IF he asks and we do it together. For the most part I tell him that we look with our eyes, not with our hands. But by letting him touch, supervised, he learns that these "toys" are pretty but boring. You can't build with them. They aren't magnetic. They don't make a noise. Mamma tells you not to put them in your mouth or throw them. Dull. Ignore them.

He is also keen on ownership, so although my things are often lying around, a good way of teaching DS was saying "that's Mamma's phone, would you like your phone?" then swapping them. He knows he doesn't touch my phone now: well, not unless we're out, he's bored and goes through my bag. Then he sits on my knee to play with it (so he doesn't call anyone!). Actually, he's REALLY good with not touching if I tell him it belongs to me or DH. And he doesn't go in cupboards unless he's getting food or putting things away. He does touch some of my books, but only those with bubbles on the cover. He loves reading cleaning books LMAO.

Mum childproofs for him a bit, but not so much any more. He is WAY more likely to attack the fruit bowl than her pretties. Actually, he loves Grandma's antimacassars... but weren't those designed as childproofing tools in the first place?