The basic point is that Ash needs a companion to know his limits. And the companion does get in return, experience. Ash also gets into situations he could only solve with a companion's help many-a-time. Just saying, Pikachu wouldn't have been with Ash right now, but with Team Rocket, if it weren't for his companions.
Also, he has traded Aipom for Buizel once. This does show the other benefits of travelling with a companion.
Also, the show would be monotonous if it were a one man job.
We also know how frequently Ash becomes immature, too. It's an unavoidable aspect.
What you don't realize is, if Ash didn't have a companion, you'd have told him to read books. This also increases the number of Pokémon that can appear. It will be unfair to show only Ash's Pokémon throughout the journey, wouldn't it? Gotta catch em all, right? So just imagine why May has Blaziken and Ash has Sceptile. Simple.
Wouldn't you think Ash as the hero of the anime? If he travelled alone, that basically encourages all Pokéfans to do things solo.
How many time Ash has to learn his limit ? Isn't 15 year enough ? and Why its only him who has to learn his limit ?
Plus , Other trainer get in trouble too so why Ash is only one who can't deal with it along while other can ?
Did you watched Pokemon chronicle ! It show that even referring character face problem but they doesn't need a Companion , they simple need the surrounding People .
Furthermore , Read What I said -
I wanted a Pokemon Anime where anybody can become a cast anytime ! They will be no such call cast or non-cast character ! In other word , Nobody will get to be special because he/she travel with Ash !
Like Kids Anime Such as , ''Sgt Frog'' Or ''Shugo chara'' !
Plus , How come Ash's Pokemon will be only one getting focus if Ash travel along .
Why ? Will all the rival , referring & Oneshot character will be dead if Ash travel along ???
Read the title -
I asked it Ash should travel alone !!!
I didn't ask if Ash should always be alone .
Ash can have friend too just like how a Normal student have friend without spending every 24/7 with them .
AND WHAT DOES ASH HAVING A SCPTITLE AND MAY HAVING A BLAZIKEN HAS ANYTHING TO DO WITH THIS ?
I rather prefer if Ash had a Tsundere female rival with Blaziken & A calm male rival with swarmpert ! That way the AG Series would be even more exciting.
But Writer focus too much of May & her contest which ruined the series .
PokeSpe character travel alone too but that doesn't Pokespe to do thing Solo.
Plus , Kids should learn to do thing Solo ! They should learn to take care of themself . Because there is a time People has to learn how to look after themself . Kids shouldn't try to be dependent like Ash because not everybody will have people watching over them in future.
It a harsh lesson But its true !
Its a good thing to trust other and work with other ! But It doesn't mean Kids should learn to be completely dependent on other like Ash & Believe that 2 or 3 people always show up and spend 24/7 to look after him .
What you asking is wrong time of Moral .