"I wonder whether they had to strengthen the bridge?" And yes - I do already know the answer, but it's a good one to ask kids who're doing physics at school.
You could try treading on an up-turned 20-pin IC. Or you could save yourselves the trouble and just take it from me that it not only hurts, but hobbing around trying to find a pair of pliers to remove it doesn't add to the fun one jot.
Have kids - then you'll get to do all the finger-painting and Lego you want. It's great - I can't imagine why anyone would have kids, then not join in and play.
It's not just architectural masterpieces that can be useless. You should see what passes for a "home" round here these days. Ours ain't large, but at least there's room to do something other than sit in front of the telly all day. Modern "affordable" homes are only any good if you don't want space for a couple of kids' bikes, a pushchair and a life. If you want a hobby that you can't do on your lap - forget it.
And yes - I do already know the answer, but it's a good one to ask kids who're doing physics at school.