writes:

You have glossed over two things:

1) What restrictions would effect YOU? Do you really want to tow banners?

I've already listed the things that would affect me. I might want to fly
higher than 10,000 feet. I definitely would want to be able to fly at night. I
might want more than one passenger with me. I'd want an instrument rating. And
so on.

The Sport Pilot certificate is almost worthless. It would make more sense to
do away with the many excesses in medical requirements, so that people
wouldn't have to resort to a Sport Pilot certificate just because they cannot
pass a medical.

2) You have overlooked several paragraphs, in particular 61.325 and 61.3271.

I haven't overlooked them (I assume you mean 61.327, not 61.3271, which
doesn't exist), but they are irrelevant, since the other restrictions of the
certificate already render it useless to me.