It is so important that you are comfortable in the clothes that you are wearing when playing golf. I used to like playing in Waterproofs as i felt they restricted my overswinging.
It used to be the case that clubs were strict on clothing - insisting that you showered and changed before entering the club house. So much has changed - In many clubs you can wear jeans now and enter the bar area with your spikes on - Check your club rules on dress code