And many families have their own traditions as well, some do not "skip" Sundays for example. I think technically a bishop would disagree that chicken is allowed, but that's not the point. It's that it's a sacrifice.
We make little sacrifices in remembrance of the huge one that Jesus made... and it's also usually a betterment of self thing as well. Over Lent people will often promise to exercise more, or give up chocolate/snacks. I think it's a positive thing all around.
