I would recommend that both you and your dad dont eat a lot of red meat. It has fat and cholestrol in it moreso than other meats, so its best to not eat it more than say, 3X a week. maybe even 2 times. Eat chicken and turkey and fish and maybe some vegetarian sources of protein like beans.
I got whey protein powder so that I could have a leaner, easy source of protein (enabling me to lose a little bodyfat while maintaining my muscle mass)
So no, you dont need protein powder, but its nice to have

Its a supplement. There if you dont get enough protein normally, or if your only protein sources were bacon and peanut butter XD