you are depriving them of an excellent source of both physical and metal exercise, but to each their own.
To each thier own indeed
I really have not observed what you are describing in my bettas; they hardly seem deprived to me. My boys and girls are some of the most active, inquisitive fish I've ever seen. They never stop moving, they are very responsive to thier environment, and they flare when the please without the stress of encountering another member of thier species. They also get plenty of exersize since my tanks are large and do have a current; they are all very strong, of a good body condition (not overweight, muscular, sturdy), and healthy. And, as I said, I've noticed that when my fish can see each other, they seem to get fin deterioration, possibly from the stress. My fin-biter also self mutilates if he can see other bettas. Perhaps because they are not plakats, and are just lousy pet store stock, they are a little more prone to stress than yours?
And SRC, while I respect your opinion, I really do not think that an agressive, anti-social fish species bred to have a heightened drive to fight in addition to thier own natural inclinations are at all comparable to social group animals such as humans and dogs. That, and the wild conditions bettas are in are VASTLY different than the captive ones. So again, I do not feel we can really compare them; chances are, a wild betta is much less exposed, not as agressive as our selectively bred captive counterparts, and are hardier and more used to stress then some VT petstore reject. However, I do think the rest of the post made some good points, and if your bettas are in conditions where they don't get a huge amount of exersize, the flaring could absolutely benefit them.
I am a little insulted (not by you personally) that people are suggesting that bettas who are not routinely flared are bored and lethargic, namely because you haven't seen our fish, so how can you fairly make that judgement? I said that my fish
personally are stressed, so I could not see the point - for them. You guys have made some very good points which I respect, and I am sure it works well for your bettas, but I don't really appreciate being told I am maybe not a very good fish owning for not doing something that I personally have observed as stressful to my very content, very active, very healthy fish.