I agree with you - I don't find travel-level sports healthy either. My daughter's done a bit of low-grade travel soccer this past year and we're bailing on it. It's a machine that pushes the kids and parents into thinking they're being seen by scouts who will get them a Division 1 scholarship - even average (and lower) players are led to believe this. In reality, it's a bunch of bunk and only the best-of-the-best-of-the-best will see a D1 scholarship. They string the kids along to feed the machine. A few of a top league's best players may get some kind of small-school invite, but in the cases I've seen, your kid ends up compromising their academics to go to a small school just so they can continue playing a small-school sport they're going to stop playing totally in 4 years max. I'd rather they select a school based on their academic and career drivers and play intramural soccer.
Not to mention the expense. Spending a full weekend (Friday afternoon thru Sunday evening) driving 2 states away and spending food and lodging to play another mediocre team that we could find in the next town over gets old real quick.
I totally realize that's only my experience and I don't know how every sport works (though I suspect travel baseball is the worst in that regard). If your kid is a high-performer and lives to play a particular spot, that's one thing, but most parents don't think enough about the end-game. So many kids get burned out by their mid-teens after spending all that time and money and just want to drop out. At that point you hopefully have some good friends and experiences, but it's at the cost of not doing a ton of other things. Plus it's thousands and thousands of dollars spent on pursuits your kid won't make much use of in their adult life.
I think kids should try several sports growing up and only specialize in something in their high school years if they're elite. Otherwise, play and have fun. They'll enjoy sports much more for their whole lives IMO.