If your "50 year old" likes science, history, technology or nature then yes. "They" would find something of interest at each visit. Otherwise they should skip it, as they will be bored.
Yes
It could be, depending on what you're after. If you are going with family or children, then it will most assuredly be fun for all. The exhibits are oriented toward kids but there's a lot there to enjoy solo, too, like actually reading and enjoying the exhibits.
Fun for all ages
Lots of fun .
Took my family (including my 73-yo mother-in-law) recently, and everyone loved it!
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