How can peer pressure among boys and men regarding masculinity be addressed to promote healthier relationships?

I feel like the peer pressure amongst boys is hard on their mindsets and they should have the ability to express their emotions without having to feel embarrassed. Anyone should. However, I feel like men are becoming less men because they aren't held to the standards of being a protector, provider, and leader anymore. They should have the ability to express their emotions but realize they are held accountable for them and the outcome of how they react. Plus people in general are over sensitive now in days.