My attitude to this changes every few months or years.
I found that certain sweeteners gave me headaches and insomnia - so I stopped them
But I have no problems at all with xylitol, stevia, monkfruit and erythritol which are a heck of a lot less 'artificial' than aspartame or saccharine. Although I find stevia and monkfruit pretty vile tasting. And xylitol is poisonous to the dog half of our household.
Then I went all natural and so on, and tried to avoid any sweet stuff at all. That got old fast.
Then I discovered that sucralose, used in cheap fizzy drinks, causes me no problems (except the odd hunger pang) and this has opened up a slot for the occasional lemonade on a hot summer's evening, with a jolt of unsweetened, home made sloe gin in it. Heaven. I always drink it after a meal, so any hunger pangs are completely quashed.
All the above make me completely 100% uninterested in drinking anything sweet in pubs, bars and restaurants. I don't trust the staff to give me sugar free anything, and even if they did it would likely keep me awake and give me headaches. So occasionally at home, Tesco's own brand plain lemonade is perfect for me.
I guess it all boils down to personal tolerances, how often, portion size, and so on.