Undoubtedly prevention is better than cure. Who can disagree that the medicine taken to prevent an illness is better than being struck with the illness?
This has a similar approach to what the religion of Islam teaches. If God sets down ground rules which prevents one from sinning in the first place then would they then have a legitimate excuse to sin; thus harming themselves?
Our wisdom is limited compared to the Almighty’s. We trust our Mother’s decisions & opinions because she has the best interest for us, but is there any comparison to the wisdom of our mother to the wisdom our Lord?
Reflecting on this, one may come to the realization that Islam, when implemented correctly doesn’t restrict anyone from having ‘fun’ but in fact protects them from possible harm.
Some food for thought for those with sincerity.