[ahje]

It's not about age, it's about experience and trust.

My grandfather had an interest in technology, experience in how to use UI's, and used a computer on a almost-daily basis since the late 70's up until his death a few years ago. He never had any issues telling ads/fake popups from actual system messages and so forth, and he was quite comfortable using a computer on a rather advanced level.

Some younger relatives, on the other hand, have barely touched anything without a touch interface, can't really use a web browser properly, and is pretty much limited to whatever apps they can install. They solely rely on iTunes Store/Google Play to screen stuff for them and blindly trusts anything they install from a trusted source.

If I had to choose a scamming victim from those two categories I'd go with the younger, less experienced ones.