For example; you can be a men or a teenager that loves to play rugby, but you are thinner, and you want to play as a fly ( a men thats play in the middle of the field ), but if you want to be the fly of the team you have to be a stronger men, so in this case steroids can help you.
Otherwise; you might be a stronger and taller basketball player, in this case, you dont have the necesity to increment more your muscles or stature, so dont be stupid and never use or stop using steroids, can be bad for your body.
In conclusion, its your decition if you want to use steroids or not, and already i give you the reasons if you have or dont have to use, but think about it and ever do sports.