AG
Read your response and see how many times you have written the word probably
Look I don't want to give you a hard time but you are coming over as very indecisive.
You wanted to be an airline pilot ? You now have a good job which allows you to make the choice to take up flying ( a decision ) You bring Up the excuse that flying maybe dangerous and you owe it to your kids not to do anything dangerous
The aircraft are too old (does that make them unsafe? They are still in one piece after 40 years of heavy use)
Being are worrier and a guilt freak is a problem but you need to let go a little and have fun yourself! Your kids will pick up on the fun dad with some passion in his soul! do read your own messages
Pace
NB I am writing this from the USA having just completed my citation 550 recurrent god I could think of loads of reasons why not to bother!
The only regrets are not attempting to do things you want
It's your life and I am sure you will find a reason not to do it
PROBABLY