Thats why some things are forbidden while some are just frowned upon. There r different restrictions and different types of bad things.
The things that are considered the worst will affect not only ur spiritual life but also ur physical life such as health and society and ur family as well: such as stealing, using drugs, lust, bf gf stuff.
If u look at people who are poor especially in developed coungries like america is is because they have indulged in these worst things and ruined their life and their families and future generations. Like having kids out of wedlock, stealing and going to jail, drugs etc. (Excluding mental illness)
I know you are going to say, thats not what im referring to. Masturbation wont ruin ur life to that extent, but it is a cop out. U r taking the easy way out. Instead of fighting one of the grandest hardest fights against ur mind, against mahabir lust, ur giving in.
Like bhai jagraj singh of basics used to say, sikhi doeant have too many rules, thats why we have a lot of grey areas and these questions arise, because each person can decide for themselves based on their goals.
People who are really strongly on the path of spirituality will want to avoid movies, songs, sports. And will try to restrain their mind at all times.
But as grihisti sikhs if we arent going to go to that extent. That doesnt mean we give in and allow anything. Just youtube it, so many ppl talking about no fap and its benefits, cold baths, dopamine fast, meditation. Shouldnt sikhs be of a higher caliber?
We r forgetting, more than saint soldiers, we were made monk householders, grihisti yogis. We were supposed to strive for mukti, liberation while raising family, living in the world and trying to save the world. Any of these goals is hard to do and takes a lifetime, so as sikhs how can we have time for pleasures when such heavy duties await us?