Most museums you'll visit are extremely hands-off - and for good reason. Preserving historical collections is no easy feat - there are entire boards of trustees that help to manage heritage sites, there are fire teams who are trained in how to handle the most valuable assets in emergencies, and even the slightest change in storage conditions can seriously degrade certain artifacts. So when museums take a look-but-don't-touch approach, that's why.
The UK's National Video Game Museum isn't like that.
