If running aground is your biggest fear then how do you feel about propane leaks
A lot depends on where you sail and what kind of boat you have. My Tartan 27' has a center board which acts as a very realistic depth sounder
. If we run aground (and we have) we raise the board and get the heck out of there.
I was recently on an O'Day 27' with a winged shoal keel
with a falling tide on the LI Sound Connecticut shoreline and we ran aground. All the water
went out to the point that we could climb off the boat onto the beach - the winged keel and rudder
held the boat upright until the tide came back up and we just sailed off 5 hours later.
I have also been on sailboats in the Chesapeake that have touched bottom (hard not to in the Chessy) but the bottom is soft sandy mud and is pretty easy to get off if you heel the boat, throw a kedge anchor
and/or backwind your sails
or turn on the motor
What is scary is to run aground on a hard, rocky, uneven surface.
Soft groundings should be no big deal
Hard groundings can be another matter entirely.