Is it really bad to have few close friends?

Personally, I think it is better to have a few close friends than a bunch of acquaintances. I have a couple of friends who I can ran to when I have a problem, and I also have some acquaintances who I go out with to only have fun, etc. My father (who always belittle me) thinks I suck at life because I have only few really close friends, without looking at the fact that most of the people he thinks are his friends talk nasty things behind his back. Anyway, what are your opinions?