Yes, it has changed a lot - they are not normally used unless required today. This is due to both side effects (admittedly unlikely but can be very serious) and more important overuse and bacteria becoming resistant (as these are the last ditch drugs for treatment). In no case should anyone be taking on there own as it appears some of us may be doing.
And yes I am old - but it is the only drug I have ever had serious reaction from. As Cipro can cause a lifetime of hurt would not be taking as first choice at any age when it is not required. There are safer drugs for most things.