Follow Fossil's advice.

It is MUCH easier to travel - long distance today....than 55 years ago.

Standard cabin configurations offer OVER 50% isle seats.

ALMOST every single NATION in the world has an international airline. Follow the maps...the refueling stops offer astounding bargains.

There is NO Extra Charge for seat selection. You can view (via computer) the current seats available.

With a prior phone call. SOMETIMES (not always) the cabin crew will adjust tall, or the fat (Grand lower Junctioned), and children to alternative seating if it is flexible.

EVERYONE onboard ... wishes EVERYONE a peaceful flight.

(I believe, I witnessed, a passenger - sedated, manacled, and seated in the "flight-crew-jump-seat" behind me. Perhaps, ten fellow fliers were aware...on a full passenger load of 360. But, if the Captain, leaves the cockpit - something most serious - is a float.)

The air space is secure. You are free to move around the world at will.

Sincerely,
Gargoyle

Also experienced several "If there is a doctor on board ... please identify yourself." Medical emergencies.