avast isn't "fooling" inexperienced computer users.
They make decisions in order to protect those users from doing "foolish" things.
Yes, some people would rather not have that.
But that is only a very tiny amount of people.
And many of those think it is wrong because they don't understand things.
About 220.000.000 people are using avast.
You (almost) don't hear anything from over 99,99% of them.
They are satisfied with how things are done by avast.
You won't see a perfectly working car in a garage for a repair
Keep in mind that with so many users it simply is not possible to satisfy all.