How about chaseing and try'n to head hounds that were on deer in south florida's swamps for a number of years when young. Oh yea, useing open sights. Then doing the same same with scopes. Still have my first rifles today. Still have that same 35 years old 2.5-10 scope that old 35 year old 308 too. Same open sights on that old remmington 511P .22lr .
Some people maybe a bit more clumsy I guess .
As jim bo covered . Start simple , learn the basic. Open sights work fine.