I believe playing 1...e5 is a long term-investment in your chess.
Of course, it's not necessary per se. But the variety of positions you get from 1...e5 and the way it develops both your tactical power and positional 'classical thinking' is certainly very useful whatever your opening choices may be later.
Unfortunately, I started as a 1...e6 player too, and should I make this choice again today, I would definitely pick 1...e5 as my first defence. The French is very attractice, because it's pretty simple to understand and works very well at intermediate level, but it doesn't teach you how to play 'normal positions'.
I keep running across this belief that beginners should start with double king pawn openings because those openings are open and tactical, then work their way up to semi-open games and closed games.
I'm not against it. I see the logic to it. It's nice if you want to do it that way. I think it's kinda cute to watch beginners play e4/e5 and party like it's 1899.
But is it all that crucial? You can get tactics and open positions from other openings. As I've said, I didn't learn openings that way and neither did my friends. It didn't seem to stunt our growth as chess players.
Speaking for myself as a beginner, playing the French against e4 suited me right down to the ground. I didn't mind the cramped positions. I liked building for a later counterattack. Most of all, I liked having more control over the game and avoiding all the complexity and craziness that White can throw at Black after 1...e5. Black can lose so quickly defending a double king pawn.
So what's the big deal here?