Many people just wanna use PR as a backup to their status in the US or for social servicesPR is given to people who have an intention to settle in Canada permanently.
If that's not your priority, then what's the point of becoming a PR?
The residency obligations are very generous, you can even continue renewing your PR status by only staying in Canada for 2 years in every 5 year period.
And you become a citizen after 3 years.
It's very generous compared to many other Western countries.