Scrum is something I do not like in Rugby.
I doubt the necessity of scrum.
The shortcomings of scrum are:
Time-consuming
Too many resets
Physically too demanding
Too many injuries (dangerous)
Impossible when the difference of strength between 2 sides is large
Too many fouls
etc etc...
Yes, it is. Scrummaging has been an essential part of the sport and will continue to be so.
It is sometimes unavoidable if the scrum takes too long or needed to be reset again tho nowadays it's quick. Don't like it? There's absolutely nothing you can do about it. Let the ref sort it out and be on your way.
I assume you're a backline when you said 'physically too demanding'. It may be so for some but I don't hear any forwards complaining about that. Not everyone can be a front rower because the position is very specialised and a player can only play that position if he has the right body physique.
Too many injuries? Sure, we've seen some gruesome freak accidents such as Matt Hampson, but for it to happen is quite unlikely because players rarely get injured when the scrum collapses; not to mention that a safer engagement is applied but still, it can happen. It's usually a player's fault for not scrummaging properly when it happen regardless if intentional or not.
'Impossible when the difference of strength between 2 sides is large'? That's not even a real issue. Well, for the weaker side it is. It's like saying Germany shouldn't win against Brazil in the 7-1 match because Germany was the stronger side. Totally absurd. Brazil's problem.
Again, player's fault for making too many fouls.
I am aware that I'm posting this with an aggressive tone, and I apologize if I offend you in any way, but I just have to make my points loud and clear.