Do you have to choose seats on Ryanair?

Related questions

1. Does Ryanair priority include seats?
2. What does non priority mean Ryanair?
3. How do I add priority on Ryanair?
4. What is a priority boarding?
5. How does Ryanair priority boarding work?
6. Can I add priority after booking Ryanair?
7. What is the new Ryanair cabin bag policy?
8. What is a small cabin bag Ryanair?
9. Does Ryanair have a loyalty program?
10. What's included in Ryanair standard fare?

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23. #which
24. #checking