It all starts with disobedience to parents

It's inevitable. It starts with not doing as you are told and is ended by the hangman.

God knows all your sins.

On the other hand, if you are a good boy [or girl] you can look forward to respectable senility at age 60.

If you opt for fags and masturbation you will be finished at 48. 

If you follow Sir Thomas Beecham's advice to 'Try everything once except folk dancing and incest” Lord Satan may claim you sooner [that country dancing is a real killer].