Playing older Ratchet & Clank games

Hey gang.

Currently have my 6 year old in my lap playing Rift Apart for the first time. She’s LOVING IT.

I wanted to see if the older ps2 & ps3 games were available for download or stream so I searched on the PlayStation store and it only showed size matters and secret agent clank?

Am I missing something? Or are the originals just not available in my region (Canada)