Yes, absolutely it's normal.

No user process created these. They were spawned when SQL started and they won't terminate until the SQL instance stops. That's why they have such huge wait times. System processes all wait a lot, it's normal, that's why those wait types are excluded from all well-written wait-analysis scripts. They're waiting for any work that they need to do.

This is what my desktop PC's SQL instance looks like, machine's been up for a week and SQL's barely been used in that time.