Do you think that single people should be allowed to have children?

Well if the person has the capacity to sustain another life - financially and emotionally, why not?

I didn't even think it was a questioned subject. Of course.

I saw a little piece on TV about a man (about 50 years old) who used surrogate mothers to have his own biological kids, and he was single.

He seemed like a good dad.

I can't see that anyone should have the authority to disallow such a thing.

Yes my I hate my Dad I would have been better off with one parent

That depends on the person.
I wouldn't say "no" in general, so I voted for yes.