In tournament play, the touch move rule was introduced for a couple reasons. The first was to ensure players could not treat a live board as an analysis board, simply moving pieces about and analyzing from that new position, benefiting from physical board vision early into lines that should be calculated in the players head. The second was to stop players from pretending to make a move to guage the opponents reaction, and then bailing out if they seem to think a blunder has been made.
This is an important rule, in competitive play. However, the large majority of chess players enjoy the game casually. I would imagine that within the Lowell Chess Club, the demographic of players still leans towards the casual side. The players who are violating the touch move rule are likely newer or more laid back players. They are not ignoring the touch move rule because they're trying to gain an edge, it just isn't critical to their enjoyment of the game.
Further, touch move rule isn't enforced by a third party but rather claimed by the offended player. As you said, those who have been playing in tournaments or for some time are very familiar with the rule. The stronger players know of it, the weaker players do not. If one of the stronger players at our chess club is playing a weaker player, I would consider claiming the touch move rule to give an unfair competitive advantage to the stronger player, as the weaker player has not developed complete mental calculation skills and may need the assistance of the physical board more. To claim the touch move rule and deny the weaker player this option is to take from them a significant chunk of their playing strength, and to do so from an even or worse position when they've been outplaying you is to destroy the potential for a brilliant and foundational game they can look back on and draw inspiration from.
All of that said, I think the simplest solution is for both players to agree on the touch move rule just as they do with the time control. The rule may be offered by one player but does not need to be accepted by the other. If two strong players are playing, they will likely agree on this. If two weaker or casual players are playing, it likely won't come up at all - they may not even be using a clock! Like any sport, chess is a game that can be enjoyed on many levels, and the restrictions on play should be weighed against the playing environment and attitudes of the players. Ultimately I consider the Lowell Chess Club to be a casual environment, as the goal of the club is to introduce as many people in Lowell to the game as possible, extending to them a space to explore the board in their own way and at their own pace.
Enclosed is a link that describes a fundamental rule that is not always being observed at the Chess club in Lowell. It is important to highlight because this takes away an important factor in things that are competitive in nature: mistakes. Should there not be consequences for mistakes? Or should do overs be encouraged? If an individual wins a hard fought game and says that they have been playing the game a long time; has played in tournaments, then it obvious that he/she knows about this standard. My point is, intermediate players know of this rule. And if you are in a chess club: you should not only know this rule but observe it to no end. Mistakes impact the game as well as good play . That is to say, sometimes touch move is a deciding factor in the game of chess.
If you play an individual that takes nearly 2-3 minutes per move, they should have some idea of where their piece is to go. Furthermore, en passant is always observed correct? Pawn promotion is always observed; discovered check/perpetual check are always observed. Does white always move first? Is the light colored square always in the right hand corner in a chess game? If the anwer to these inquries is affirmative, I would like people to observe this rule. Negating the touch move rule is an arbitrary decision that is giving the advantage to the transgressor. Lastly, observing this rule would only serve to better the individuals at play. Would you not think twice if you knew there were a penalty for knowingly and with intention, hanging your queen?
Touch move- If you touch a piece, you must move it. If the piece has no legal moves, there is no penalty for touching it. If you touch an opponent's piece, you must capture it if possible.
https://www.youtube.com/watch?v=NPM8py0xHi8