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If you've cleaned the rollers and it keeps happening, the problem is almost always the paper you're using or the jam sensor. Try better quality paper, maybe a decent brand, because cheap or damp paper jams badly - Canon Pixma printers can be pretty picky about that. If that doesn't work either, the sensor might be dirty, and in that case you need a deeper clean inside the printer, or the paper feed mechanism is really starting to wear out. Other than that, no, printers shouldn't be jamming frequently just because they're old.

If cleaning the rollers didn't work, the problem is almost always the paper sensor or the feed rollers that have worn down quite a bit - with a Pixma it definitely happens after a few years. Try checking if there are paper scraps in the slots or if the rollers spin poorly when you move them by hand - sometimes a deeper cleaning with a damp cloth does the trick, not just dry cleaning. If it still keeps jamming, one of the internal rollers probably lost its grip and it's not worth trying to fix it yourself; better to take it to a technician or think about whether it's time to replace it.

If you clean the rollers regularly and the paper keeps jamming, the paper sensor is probably dirty or the pickup roller has lost its grip; try cleaning the sensor with a damp cotton swab and if it keeps happening, the roller might need replacing (it's not that expensive and Canon printers usually have easy-to-find parts).

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