If still fit and well most retired people either find a part-time job or become involved in a hobby that they had no spare time for previously. I visit my grandchildren, am involved with my church and have friends that I can meet up with. I can still 'just' cope with my own shopping, washing but have a cleaner. Ironing I avoid if I possibly can. Hurrah for synthetic fabrics.
I do as much as I am physically able to do and will do so for as long as I can. We know that once we give up we'll never be able to pick up the pieces again. Life is hard as we age, worse for some than others, but we must do as much as possible if we are not to become totally dependent of others before we wanted that to happen. I hope that my kids never have to do everything for me. They do help now but, if they were not available some days, I'd cope reasonably well