No, that is not sarcasm. Our tenants make us rich. And they ask so little in return (well, most of them anyways...), a clean, safe, maintained place to live.
Your landlording skills are probably the most important skills to learn to become financially independent, ahead of choosing properties, negotiating, etc.
Not learning good landlording skills can destroy your real estate investing dreams (and your property!) pretty quick. If you absolutely can't deal with tenants, you could hire a property manager, but I recommend managing your first few by yourself. This way you see what it's all about and who knows, you just might realize it's not so bad after all! Your fear quickly disappears when you become familiar with it, and learn the applicable landlord-tenant legislation for your area.
Or you can do what I did - marry an awesome property manager!