In survival sense they both are not needs, no man is gonna die if his wife doesnt have sex, and no woman is gonna die if his husband has a mistress.

In terms of relationship things get murky because relationship "needs" can go above and beyond the survival needs

We have evolved as a society where forcing someone to have sex just because they are married is seen as bad. But forcing someone to not have as much sex as they want just because they are married or are in a relationship is seen as acceptable.

Now you can say to the man, just use your hands and porn. But porn has detrimental effects on us, we get unfair expectations and unrealistic beauty standards. It's not good for men's mental health to watch too much porn.

But I hardly think it's fair to tell men to give up porn while also taking away sex from them.

Cheating is best alternative, it forces men to stay attractive, stay social, work on their game and fitness.

Just to be clear, I am not talking about paying camgirl or other pathetic stuff as cheating. Cheating should involve sex and emotions, best sex requires emotions.

It is healthier than porn, it widens social circle of men, it gets them out of their house. Yes, there are risks of STDs, etc but they can be prevented. On top of that, it reduces undue pressure on wives to satisfy their husbands and teach men life lessons that porn can't teach. Cheating can also help men judge their attractiveness.

A man watching porn is pathetic, a man cheating is attractive. It's better to be attractive.