Actually, it's a myth nowadays that ADCs are weak early and 100% dependent on having a support to 'babysit' them. Most ADCs can do well in solo lanes as long as they aren't against high burst opponents, and one's with an escape or self-peel in particular can be very good versus many meta top laners if the ADC player understands how to play the lane and the matchup. The duo lane in general is very dependent on coordination and teamwork (this has nothing to do with archetypes and everything to do with numbers, of champions in the lane, mattering). I think most people like playing the laning phase as support, that's not what I usually hear complained about. It's the lack of impact they feel they have afterwords (even if they actual have significant impact). To illustrate: consider
very strong and impactful support pick that wins like 54% of her games over all elos, yet most people don't like playing her and feel 'weak' outside of lane, even though, truthfully she is a strong champion. Why is this? She doesn't do anything of value unless she is around allied champions. It's that dependency together with the lack of coordination you see in lower level play that makes her feel helpless and unfun to play. Her design is, balance-wise, fine, and in fact, maybe too good. But it doesn't feel good to play.
is, imo, one of the few supports that feel rewarding to play because he's such an incredible play creator. You see an enemy out of position, ping so you allies see it too, move in, get the hook, lantern them in. BAM, you netted a kill for your allies. It feels satisfying to be able to make things happen like that. Even then, if my allies aren't responsive, then even as Thresh, I will still get that 'I'm useless feeling' because in all honesty, if they won't back me up, I AM useless.
Maybe if people were strongly encouraged to 'help your tank/support players when they want you to help them' somehow, this wouldn't be such a problem. Having gotten to play tanks and supports in group play with good, responsive teammates, it's actually a ton of fun. But that's predicted on allies that are on the same page as you, and that's hard to find in solo que (and that is why one of the best bits of advice I can give to people that play damage dealers is to trust your tanks/supports and help them out, even if you're skeptical if they are making a good call; the value of establishing that kind of team cohesion is worth attempting a few risky plays that might not end up paying off).